Sore on Scrotum that appears to have ulcerated.

I would guess about 2 to 3 weeks ago an unusual bump was on scrotum. Squeezed it nothing happened, but i pretty much just ignored it after that. I would say a week or so later... It got ugly.

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Fast forward to today this is what it looks like.

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It continues to leak a clearish liquid if touched but is now less tender then it was originally and appears to be healing? Have not been sexually active in probably 7 months. What am i dealing with here?