A member asked:

Is it possible to be allergic to b12 infections? my mom has broken out in a bad rash on her face and neck. she's taken it for 5 days

A doctor has provided 1 answer

You mean injections?: B12 injections are not given daily. Monthly is usual. Oral B12 is daily. There is never a rash from any B12. See a dermatologist.

Answered 6/24/2014

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