Allergy

An allergy is the undesirable response of the immune system when a person comes in contact with a foreign substance. The foreign substance is usually harmless and normally does not have any adverse effect on the most people. However, immune system of persons suffering from the allergy, will treat the foreign substance as harmful and trigger a response from the immune system. 

More than 20% of the population in many countries suffers from allergies. The foreign substance causing the allergy is called an allergen.  Pollen, dust mites, molds and some foodstuff are some common causes of allergy. Symptoms of an allergy depends on the allergen. Some symptoms of  an allergy are:

1. Running nose

2. Redness and itching of eyes

3. Asthma, coughing and sneezing

4. Skin rashes.

Home remedies