mikejf
I can simpathise, I have to recomend welding leathers I have had many small jobs with a mig that I thaugh would not burn me and then there was that smell. I have a permanet j branded on my arm due to a overhead repair with a mig welder on some lockers at one of my high schools.A small peice of red hot welding wire fell on my arm. Bottom line is leather is the best protector, and as for the burns I agre treet them as a bad sun burn.
Don't wear flannel, Especially a NEW flannel shirt, the fuzz on it will easily catch fire. Leather is best, then wool. Here in So. Cal. these are usually to hot for mig, most guy wear the green treated cloth shirts or capes you can buy at the welding supply store, or a good denim(Levi's) shirt. If you are a smoker, don't keep your matches/lighter in the pocket, I have seen some severe burns from this. Be careful and keep asking questions.