About 5 months ago I had an operation and the next day I noticed a red burn-like mark on my forearm about 1cm in length. I thought perhaps I had been accidentally pinched or burned during surgery and as it didn't hurt I just accpepted it. It didn't fade but then it didn't grow but the other week I noticed another spot on my forearm that is slightly raised and shiny with some bruising in the surrounding skin. This hasn't dimminished either and I have since found a similar mark on the back of my leg. The three spots are not painful or broken but I'm concerned that the other mark showed up just before I had a cold sore (which incidentally I hit with zovirax and was reduced before it ever had a chance to flourish and weap).

My neck gland is slightly raised and my face and scalp itch a bit but otherwise I'm fine in myself.

Is this just some skin condition or do I perhaps have something more sinister?

Many thank's in advance!