Complete Guide On Allergy

What is Allergy

Allergy is an abnormal reaction or increased sensitivity to certain substances. The allergic individual produces symptoms when exposed to these substances, which are harmless to non-allergic people.

The main reason for this is that allergic people make a special type of antibody called Immunoglobulin E (IgE), which can react with environmental substances which lead to secretion of IgE antibodies are called allergens.



The reactions between allergens are and IgE antibodies cause the release of substances such as histamine, which produce allergic symptoms in the skin, the nose, the eyes, the chest, etc. The most common allergens are animal danders, pollens, house dust, and house mites, moulds, some drugs and many foodstuffs, especially fish, eggs, milk and nuts. Bee and wasp stings may cause allergic reactions, with fatal results in rare cases. Additionally, feathers, wool, dyes, cosmetics and perfumes may act as allergens.

Types of Allergies


Allergies have two main types:



1. Seasonal allergies like hay fever are more common in the spring when plant pollination begins. Trees and grass cause most symptoms in the spring, while ragweed is responsible for the majority of autumn symptoms.



2. Perennial allergies are usually year-round problems. Common triggers for perennial allergies include mould spores, pet danders and dust mites.
Allergic reactions or diseases may involve any part of the body; the most frequently involved are the nose and chest with resultant symptoms of hay fever, or asthma, respectively. The skin and eyes also commonly show allergic symptoms. Anaphylactic shock is a severe allergy, which affects many organs at the same time causing a rapid decrease in blood pressure, fainting and occasionally death. Though, such a reaction is rare.

Risk Factors of Allergy


Continued exposure to a known allergen. For example, if a person has feather allergy and continues to sleep on a feather pillow, the likelihood of developing an allergic response is greater than if a foam pillow is used.


Symptoms of Allergy




Most allergens enter the body through the respiratory system (nose, pharynx, larynx, trachea, bronchi and lungs).

Allergen stimulation in the upper respiratory system can result in:

1.    Sneezing

2.    Runny nose
3.    Nasal congestion
4.    Scratchy throat
5.    Post – nasal drip
6.    Itchy eyes and nose
7.    Watery eyes
Allergens stimulation in the lower respiratory system may produce

1.    Chest tightening

2.    Wheezing

3.    Breathing trouble

4.    Coughing
When allergens stimulate the stomach and intestines, they can cause:
1.    Nausea
2.    Vomiting
3.    Diarrhoea

Sometimes, an allergen response results in hives or a rash.
What to do apart from medicines
Allergy to animals

If you are allergic to animal hair or fur, keep contact with them to the minimum. Symptoms may lessen or abate at least for a while, following removal of hair and fur from the environment. Removal of household pets is the only solution as a last resort. It is most important to control the bedroom environment. A pet may be tolerated more easily, if not allowed in the bedroom at all.



It follows that any patient allergic to animals should not have furred or feathered house pets. Or foam in the bedroom. Carpets, fabrics, etc. made from animal hair should be avoided, if possible.


Contact with animals outside the home should be avoided, if possible. A problem can arise when allergic individuals visit the homes of pet owners and the best solution is to take a symptoms preventing drug prior to the visit. Remember, also that symptoms can be provoked at circuses and zoological gardens.

Important Points to Remember

You are taking any other medication and have not asked your doctor

You have any heart or circulatory problems or high BP

You have any liver, kidney or urinary problems (Do not take sympathomimetic if)

You have any heart or circulatory problems or high BP
You are pregnant, trying to become pregnant or breast feeding
You have epilepsy
You are taking any other medication and have not asked your doctor




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