I have noticed what can be described as a semi-blister bump on myu right index and middle finger first joint. t never has any fluid that I can detect. It starts out red, swells over two days and remain so for about three days and begins to subcide and a dry layer of skin is left with what appears to be shinny scar tissue. There is no pain. The joints are moderately stiff,, with moderate joint pain. I am a 69 yo male.

I am taking simvastatin, losartin, diuretic, and glyburide.