Wrong question: No skin test. But no benefit to injecting B12 unless you are deficient. This occurs in several ways. Obviously you are a patient at a clinic for hiv and getting blood tests. Follow their advise.
Answered 9/15/2014
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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