The types of allergies include the ailments of Respiratory allergy, Insect sting allergy, Food allergy and Contact allergy. These types are further categorised into many more forms like cigarette smoke allergy, cockroach allergy, dust mite allergy, grass pollen allergy, hay fever, house dust allergy, latex allergy, mold allergy and many more. The numerous toxic chemicals cause Cigarette smoke allergy, due to the irritants found in cigarette smoke. Cockroach allergy is common indoor pest allergy is caused by certain proteins found in cockroach saliva and feces.

A dust mite allergy is an allergy to a microscopic organism that lives in the dust found in all dwellings; while grass pollen allergy is a more difficult type of allergy to prevent because it is regional and seasonal. Hay fever, also known as pollen allergy, is one of the most common allergies in different parts of the world. House Dust Allergy is the most common types of allergies, where a collection of particles that can cause allergies. Several strategies for minimizing allergens in the home are also offered. Latex Allergy is a reaction to certain proteins in latex rubber that can result in symptoms such as skin rash, hives, and itching. Mold allergy is when a person develops an allergy to the molds and yeasts that are commonly found indoors and outdoors.

Pet allergy, pollen allergy, ragweed allergies and tree pollen allergy are some more types of allergies. The fur of cats and dogs triggers pet allergies and the major pet allergens are actually proteins in the saliva of animals. The sources of pollen allergy are various types of pollens (such as sagebrush and ragweed). The symptoms are sneezing and coughing. Tree pollen can be hard to avoid because trees release large quantities that can be distributed for miles. The types of allergies help one to understand and differentiate the diversity of allergies and thus select the appropriate method of treatment.