Without being able: to see the spot in question it is very difficult to advise you with certainty. It is probably just a spill. Clean the area with a bleach cleaner if you are really concerned.
Answered 11/16/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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