Multifactorial: Allergies are associated with both environmental and genetic factors. Usually there are 2 phases to allergy, a sensitization phase and an effector phase. Sensitization usually occurs at one site (such as the skin, nose, lungs, or GI tract), then can spread to other sites once the body develops memory.
Answered 7/13/2017
2.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question