Hours not days: Any severe allergic reaction would happen within minutes to hours after an injection. More minor reactions like soreness or swelling at the site or a rash would happen within 2-3 days.
Answered 10/19/2016
928 views
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 3 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