I didn't know about skin tags until I read this thread.
When I was on Copaxone I started getting something the doc called "inclusion cysts"--kind of like pimples, mostly on my hand. I also developed a few "seborrheic keratoses" (the doc's term) which I understand go along with age.
I still have the keratoses but the inclusion cysts went away, with no new ones, since I quit Copaxone.
I also had crippling pain episodes in the left groin area. These stopped when I stopped Copaxone.
Then there was the "bowel urgency" problem but nobody wants to know about that. Sally is already saying "EEEeeew."