Skin blisters that peel and are very painful. Have come back for the second time. Not spider bites.?

We thought my brother got bit by a brown recluse on his lip and between his fingers a few months ago. Its back now but, between his toes and on his hands along with the original areas. The skin blisters and peels. It is very painful and seems to kill the flesh and spread. The day before he had a horrible migraine and woke up the next morning with the skin red and irritated. It itched so, he scratced and the skin peeled off. He is very worried because the doctors told him they don't know what it is and to take pictures as it worsens. Any ideas of what this could be?

Skin blisters that peel and are very painful. Have come back for the second time. Not spider bites.?
How old is he? Guess it doesn't really matter... have you tried searching the internet?
Reply:Steven Johnson Syndrome?
Reply:Go see another doctor. The brown recluse is poisonous, and he needs proper treatment.
Reply:First, what state do you live in? Brown Recluses do not live everywhere and if you live in a region where they aren't found, you can scratch that off your list. It sounds like he really needs to see another doctor. Perhaps see an allergy specialist. It does sound rather rare. Please provide more info and I'll look into it.
Reply:Probably some kind of infection. Staph infections are often associated with spider bites, especialy if you scratch them.