The Secret of Great Health Care

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Allergies

Chapter 30: Allergies

 


     Allergies are a broad category of disorders, but allergic rhinitis is the allergic subclass that will be discussed here. Allergic rhinitis is an allergic reaction that is associated with predominately nasal symptoms and is associated with sneezing, runny nose and watery eyes.  
 

Free PDF Ebook: Ease Your Allergies




Risk factors

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Many factors increase the risk of allergies.

  • Maternal smoking
  • Living in areas of high pollution
  • Higher socioeconomic status
  • Exposure to indoor allergens as a child
  • Early introduction of food or formula as an infant
  • Non-Caucasian race
  • Genetics
  • A family history of allergies, asthma and eczema increases the risk of allergies
  • Personal history of asthma and/or eczema
 

 Free PDF Ebook:     

 

 Free PDF Ebook:     

 Free PDF Ebook:      Free PDF Ebook:     

 

 Free PDF Ebook:     Allergies usually presents with:
  • Clear, runny nose
  • Sneezing
  • Nasal congestion
  • Itchy eyes, nose and throat
  • Frequent clearing of the throat
  • Watery, red, swollen eyes
  • Fatigue
  • Headache

 How common are allergies

Allergies are a very common problem.

  • 25% of individuals suffer from allergies at some point in their life.
  • More than 50% have the condition for greater than 11 years.
  • Slightly less than 50% of those with allergies report symptoms for more than 2 seasons per year.
  • In adults, men and women are equally affected.
  • More women reported persistent allergies than men.
  • In children, more boys are affected than girls.
  • The average age of onset is 8-11 years old.

  What causes allergies

Many environmental substances can cause allergic rhinitis. Common allergens include:

Who needs to see a doctor

  • When there is evidence of a secondary infection such as a sinus infection (fever, facial pain, thick, discolored nasal discharge; an ear infection (ear pain, fever); or pneumonia (fever, productive cough, chills or breathing difficulty).

 

  • An asthma exacerbation – wheezing, shortness of breath or worsening cough

 

  • Allergy symptoms that are not responsive to over-the-counter medications.

 

Medications

Often times lifestyle modifications and elimination of triggers are not enough to manage the disease and medications need to be used. It is important to have a solid handle on your symptoms as some medications work better for specific symptoms. Those with eye symptoms should be treated with allergy eye drops. Oral antihistamines can treat sporadic symptoms. Nasal congestion is best managed with decongestants and some prescription nasal sprays.

 Medications typically do not work when they are not taken. Individuals with persistent disease need to be treated continually or symptoms will return.  

  

Oral antihistamines are the most common initial treatment for allergies, mainly because of their availability and ease of use. Antihistamines treat runny nose, red watery eyes, sneezing and itching. They do not treat nasal congestion but many products come combined with decongestants.

Older antihistamines - chlorpheniramine (Chlor-Trimeton), diphenhydramine (Benadryl) and hydroxyzine (Atarax) - are associated with more side effects, particularly sedation, and are less commonly used when compared to newer medications. The most common over-the-counter first-generation antihistamine is diphenhydramine.

Second-generation medications have improved dosing schedules and are less commonly associated with sedation. There are five second-generation antihistamines. Two are available over-the-counter. Multiple studies have demonstrated that cetirizine (Zyrtec) is the most potent over-the-counter second-generation antihistamine. Cetirizine and loratadine are the two over-the-counter second-generation antihistamines.

Oral antihistamines are often used as first-line options in the management of allergic rhinitis due to their ease of use. Other over-the-counter medications

Nasal Cromolyn

Cromolyn sodium (Nasalcrom) is an over-the-counter medication used in the management of allergic rhinitis. It requires frequent dosing and is given one puff per nostril every 4-6 hours. It is not as useful for immediate relief and it may take a week before benefit is realized. It is not as potent as nasal corticosteroids.
Nasal Saline

Nasal saline is a frequently overlooked option for allergies. It removes factors that cause allergies and improves mucus clearance. Everyone who has allergies should use nasal saline. Two primary types of nasal saline are normal saline and hypertonic saline. Hypertonic saline has a higher concentration of salt in it. It is hyped to be more effective at drying the nose than normal saline. It also is more likely to cause a burning and stinging sensation when used.

Eye Symptoms

When allergies affect the eyes, there are two ways to manage them. Take an oral antihistamine (all of which have systemic effects). Second, you may use eye drops to deliver the medication directly in the eyes.

Some people are able to use drops used for dry eyes to effectively manage their eye symptoms. These drops can help flush away allergens, but do not have any medication that directly treats allergies.

Many people with severe eye symptoms need medicated eye drops. Many products are a combination of antihistamines and mast cell stabilizers and effectively treats red, watery and itchy eyes (see table at the end of the chapter). For eyes that are inflamed and painful prescription anti-inflammatory drops may be helpful.

Prescriptions medications

When a trail of environmental control and over-the-counter medications fail to adequately control allergies then a visit to the doctor is necessary. The doctor will likely recommend some other medications or refer you on for allergy testing.

Other medications to help treat allergies include: leukotriene receptor blockers, nasal steroids, nasal antihistamines and nasal anticholinergics.

Leukotriene receptor blockers inhibit chemicals in the body that are responsible for allergies. This class of drugs is commonly used in those with asthma. The most popular drug in this class for the treatment of allergies is montelukast (Singulair).

Nasal corticosteroids are recommended as first-line treatment of moderate to severe persistent allergies. Immediate relief will not be noticed with them. Some benefit is usually appreciated by the fourth day of use and it may take a couple of weeks before full effects are noticed. They work by reducing the amount of inflammation in the nose. They are often combined with oral antihistamines, which will provide some immediate relief.

Spraying antihistamines up the nose is another method to deliver medicine to the allergic patient. Topical antihistamines come in a product called azelastine (Astelin) and Astepro.

Anticholinergic medication - ipratropium bromide (Atrovent nasal spray) – can also help dry a runny nose. This medication comes in two strengths 0.03 and 0.06 %. Only the 0.03% is indicated for allergies while the 0.06% is indicated for runny nose associated with the common cold. This medicine can be used in those over five and is dosed two sprays, 2 to three times a day. Stuffy nose

Allergies are often accompanied by nasal stuffiness. Some of the medications already discussed can provide relief from nasal congestion – topical antihistamines and nasal corticosteroids. Effective and rapid relief from nasal congestion can be attained with OTC decongestants.

Decongestants are dangerous in some people. Decongestants have the potential to increase the blood pressure, heart rate and make you feel jittery. Checking with your doctor or health care provider is important if you have high blood pressure, heart disease, heart rhythm problem, diabetes, thyroid problems, an enlarged prostate or glaucoma.

Many allergy medications combine decongestants and antihistamines. When you see the allergy medication with a "D" on the back, for example, Claritin D, this has a decongestant in it.

When your symptoms are a combination of sneezing, runny nose and watery eyes with nasal congestion, than the use of an allergy product with a decongestant will be most helpful in managing symptoms.

Decongestants come in a variety of forms (see chart at end of chapter). They can be taken orally, topically (as a nasal spray) and as a vapor.

 

 To purchase products discussed in this chapter visit The Drug Store.

 Severe symptoms

In rare situations, doctors need to use oral corticosteroids. These are powerful anti-inflammatory medications and are used when symptoms are severe. They are typically given for less than 7 days. Allergic rhinitis is not an indication for long-term use of oral corticosteroids. What should a patient do with allergies?

When you come down with the hallmark symptoms of allergies – sneezing, watery eyes, runny nose and nasal congestion – what should you do?

  1. The first thing to do is take an inventory of your symptoms. This is best accomplished by maintaining an allergy log (see end of chapter) With the use of this allergy log you can determine when your allergies are worst, which symptoms are most bothersome, what is aggravating them and how effective your treatments are at controlling the symptoms.
  2. Attempt to eliminate any factors that may be making the allergies worse.
  3. If this does not work, a trail of some over-the-counter medication is appropriate. The most popular and potent over-the-counter medication is cetirizine (Zyrtec). If you are plagued by congestion, the addition of decongestants may be helpful. Use caution with the decongestant part if you are affected by high blood pressure, heart disease, thyroid disease, heart rhythm problem, diabetes, prostate enlargement or glaucoma.
  4. If symptom control is unsuccessful with over-the-counter medications, set up an appointment with your health care provider.
  5. Continue to work on environmental control and track your symptoms.
  6. If after a two or three appointments with your primary doctor your symptoms are not controlled than seeing an allergy specialist is recommended.

Natural Solution to Allergies

Another option to help treat and prevent allergies is to take the natural route. Allergy Free for Life is a product that can help you banish allergies naturally. Check out this link to find ways to treat allergies without the use of medications.

It is critical to clean the enviroment with a HEPA filter - if you do not do this step your allergies will never be controlled.


 


What the doctor will do?

If environmental control and over-the-counter medications have not provided adequate relief than the health care provider may prescribe some of the other medications discussed above.

When this does not adequacy control symptoms than allergy testing or immunotherapy may be indicated.

The primary doctor will provide a complete evaluation and may decide on an earlier referral if other symptoms suggestive of a problem are evident. Certain conditions that would warrant evaluation by a specialist include:

  • Nasal polyps which would be suggested by chronic congestion, runny nose, post-nasal drip and reduced smelling and/or taste
  • One sided nasal congestion
  • Persistent bloody discharge
  • Complications of allergies such as recurrent sinus or ear infections

Over-the-counter allergy products

Over the counter Antihistamines                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

Medication

Dose

Side effects

First-generation antihistamines

Diphenhydramine (Benadryl)

For those 12-years-old and older take 25-50 mg every 4-6 hours; 6-11-years-old take 12.5 to 25 mg every 4-6 hours; not recommended for those under 6-years-old

Sedation, constipation, blurred vision, dizziness, difficulty urinating, can cause excitability in kids

Chlorpheniramine (Chlor-Trimeton)

For those 12-years-old and older take one tablet (4 mg) every 4-6 hours as needed; 6-11-years-old take one-half tablet every 4-6 hours as needed, not recommended under 6-years-old

Sedation, constipation, blurred vision, dizziness, difficulty urinating, can cause excitability in kids

Second-generation antihistamines

Cetirizine (Zyrtec)

5-10 mg orally every day for those over 5-years-old; for those 6-months and older it is indicated for perennial allergic rhinitis - and the dose is reduced to as low as 2.5 mg for those between the ages of 6-months and 5-years-old.

Sedation and it is therefore dosed at night. It also can cause diarrhea, dry mouth, nervousness and insomnia

Loratadine (Alavert, Claritin)

Dosed as 10 mg in the adult once a day. Loratadine is for those over 2-years-old with seasonal allergies

Headache, sleepiness, fatigue, dry mouth, Kids may show: cold symptoms, wheezing, nervousness, abdominal pain

 

 

 

  

 

  
                                     

                      

 

  

                         

 

  

Over-the-counter decongestants

Medication

Dose

Uses

Side effects

Cautions

Oral decongestants

Pseudoephedrine

Sudafed (Standard formula)

Adult 30-60 mg every 4 to 6 hours

Nasal congestion, sinus pressure

Increased heart rate, increased blood pressure, nervousness, insomnia, dizziness

High blood pressure, heart disease, thyroid disease, diabetes, prostate disease

6-11-years-old – 30 mg every 4-6 hours

Under 6 – not recommended

Sudafed 12-hours

120 mg every 12 hours in those over 12-years-old

Sudafed 24-hours

240 mg every 24 hours in those over 12-years-old

Pseudoephedrine liquid

6-11-years-old - 30 mg of liquid every 4-6 hours

4-5-years-old - 15 mg of liquid every 4-6 hours

Under 4 years-old not recommended

Phenylephrine HCl

Dose

Use

Sudafed PE (Phenylephrine HCl)

12-years-old and older use 10 mg every 4 hours

Nasal congestion, sinus pressure

Increased heart rate, increased blood pressure, nervousness, insomnia, dizziness

High blood pressure, heart disease, thyroid disease, diabetes, prostate disease

Under 12-years-old - not recommended

Pseudoephedrine PE liquid

6-11-years-old use 10 mg every 4 hours

4-5-years-old use 5 mg every 4 hours

Under 4-years-old - not recommended

 

Over-the-counter allergy eye drops

Drug

Dosage

Use

Side Effects

Note

Naphazoline pheniramine (Naphcon A/Opcon A)

Indicated for those over the age of 6 and is available over the counter and is usually dosed 1-2 drops four times a day

Treats red and itchy eyes due to allergies

Headache, stinging, burning, swelling of the eyes

Antihistamine and mast cell stabilizer

Ketotifen (Zaditor, Zyrtec eye drops)

One drop in each eye twice day for those over the age of 3.

Treats red and itchy eyes due to pollen, grass, animal hair/dander and ragweed

Eye redness, stinging, burning, headache, runny nose

Antihistamine

 Allergy Log

Time

Sneezing

Runny nose

Nasal congestion

Sore throat

Red, itchy, watery eyes

Fatigue

Headache

Medications

Activity

6

7

8

9

10

11

12

1

2

3

4

5

6

7

8

9

10

night

Rate the severity of the symptoms

0 - none; 1 - mild; 2 - moderate; 3 severe; 4 - unbearable

 

 

 

 

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