Appear overnight. No friction from working with hands. Very worried. I have read some literature and it mentioned it can be caused by genital herpes. I have had no sores or blisters on my genitals ever. I have not had any on my fingers, just knuckles and just on my right hand.
I have this exact same problem a few times per year, I can almost guarantee it's not herpes unless you're in a high risk group, I found this link very informative and should ease your mind, you're not alone.
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