U.S. doctors online nowAsk doctors free
A 17-year-old male asked:

I couldn't get my second mmr shot due to a severe allergic reaction to it. what ingredient would cause this? not allergic to any others. will i be ok?

2 doctor answers2 doctors weighed in
Dr. Harold Fields
Family Medicine 62 years experience
it may have been the carrier to the vaccine but I would not get a second shot unless you are monitored. Good Luck
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Jay Park
Dr. Jay Parkanswered
Pediatrics 51 years experience
Egg protein hypersensitivity used to be (before year 2010) main cause of severe allergic reaction following MMR vaccine. Rarely, individuals experienced a severe hypersensitivity to MMR, are found to have a reaction to gelatin. You can still receive MMR vaccine after evaluation by an allergist under close observation.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 38-year-old member asked:
My daughter is 3 hasnt had MMR shot yet. When should she get it?
1 doctor answer1 doctor weighed in
A 25-year-old male asked:
Can i get the mmr separately for my son in nj three different shots? Is it possible?
2 doctor answers3 doctors weighed in
A 43-year-old male asked:
I received MMR vaccine in 2006... do I need to get another shot after 15 years (2021)?
2 doctor answers2 doctors weighed in
Last updated May 6, 2021


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.