In April my a1c was a 7 so I was put on metformin.. I also happened to quit drinking alcohol after I started that medication.. I've noticed over the last couple of months, I have small bumps all over my face... at first I was thinking it was the toxins causing acne from not drinking anymore, but then I noticed the small bumps on the back of my hands... has anybody else ever had an allergic reaction like this to metformin ??? My 3 month check up is on July 21st so I will ask my dr.. but I just want to be prepared with my questions .