3 doctors weighed in:

How long does a reaction to a PPD test take to clear?

3 doctors weighed in
Dr. Simon Tsiouris
Internal Medicine - Infectious Disease
2 doctors agree

In brief: Depends

It usually only takes a few days but severe reactions can take 1-2 weeks and can even leave a scar if the reaction was a blistering one.

In brief: Depends

It usually only takes a few days but severe reactions can take 1-2 weeks and can even leave a scar if the reaction was a blistering one.
Dr. Simon Tsiouris
Dr. Simon Tsiouris
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