Unclear : This is a virus and will come where it chooses. One method is if you pick it open or the area is rubbed open or reddened such as a repetitive issue from work or chemicals on your hands. Otherwise it is only the virus choice that does it.
Answered 9/28/2016
3.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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