There are various allergies which effect human beings and there health conditions. Some common are Food allergy, Chemical allergy, Dust and pet allergy. There are four routes by which allergens enter the body. Four routes are: Ingestion, Injection, inhalation and contact.

Food Allergy and Chemical energy are more pervasive than any other allergy. Food allergy symptoms can never be same among two different persons. Problem will be one but symptoms will vary from person to person.

Hayfever is a form of allergy. Hayfever was introduced at the beginning of the Industrial Revolution. At that time it was very rare health condition but now one person in six is affected by Hayfever. Hayfever can be provoked by chemicals like dye, perfumes and latex. Seasonal change can also trigger Hayfever in some person. Seasonal Hayfever gets worst in the month of May and June.

Allergy conditions can be avoided by taking proper precautions and drugs but they can not be cured fully. There are so many antihistamine drugs to prevent allergies.

Sufferer should keep in mind about the allergens from which allergy triggers. For some people dust might be the cause of allergy and for some dander or moulds might be the cause.

Cover your mouth and nose while you think that you might get in contact with any of the allergen.

Anti allergy drugs can only prevent allergy triggers but can not cure allergy permanently. Anti allergy drugs should never be taken without consulting a doctor. They might have side effects also.

The most prescribed anti allergy drug is Allegra and should be taken under the supervision of a good doctor.