Possible allergic response of Tetracline

An over-reaction of the immune system in response to something that is normally harmless.

An allergy can be diagnosed by a doctor known as :-

Another name for Hay fever

Diagnosis of allergy cannot be done by

An extreme severe allergic reaction

A material shed from the body of various animals, including humans, which have fur, hair or feathers

Allergies which are not linked to any particular season and can occur at any time of the year.