Could last a life: Time. It depends on the type of food allergy and treatment given. Some allergies may be controlled with medication and tolerance may be induced to others. See this site for more info. http://www.ncbi.nlm.nih.gov/pubmedhealth/pmh0001820/.
Answered 8/12/2020
5.5k views
It depends: Food allergy can produce immediate hive rashes that resolve within 1-2 days of eliminating the food. Other food allergy rashes, such as eczema can last for several days to weeks after elimination. Rash can also persist if there are continued exposures to the food in question. Finally you need to as, "are you sure the rash is due to a food allergy" see an allergist for evaluation.
Answered 12/3/2018
5.5k views
2 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
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