Is it a skin or blood allergy or what?

my friend has this condition were at night his skin becomes inflammed(similar to the way yur skin will make when u've just had a burn) but it scratches him and it comes out in large and small patches all over his body. in the morning n during the day it not there. his blood type is o+ and he is allergic to medicenes like aspirin so i think these things are all related.

Is it a skin or blood allergy or what?
wow he needs to get to a doctor..... but if it only happens at night in the bed then it could be what you wash your sheets in...... the type of laundry detergent..
Reply:he needs to go to the emergency room to check that out
Reply:if it has anything got to do with blood he needs to be careful a few months ago i had my tonsils taken out,i was recovoring well until i woke up 1 nite i had 2 get sick iended up throwing up blood but tought nothing of it until i went really pale i was sent to hospital and released and i started 2 bleed again and woke up 2 days later with blood and fluids pumped into me i never thought anything of it until i was told i nearly died...get him checked out even if its only minor at least you'll be worry free and can get it treated,if its got to do with blood he could get poisoned and would be very serious then hoped i helped u....
Reply:eczema this has nothing to do with having your tonsils out and then hemorrhaging afterwards