Psoriasis.... my friend is really depressed please help....?

My boyfriend suffers from severe psoriasis. Drinking and drugs will only make your friend's condition worse. He may need to go on a gluten free diet. There is a strong correlation between people with psoriasis having a gluten allergy. Gluten is in pretty much everything we eat. He can be tested to see if he does have this allergy (my boyfriend does). Most skin issues are caused by digestive issues. Watching lifestyle, diet and stress are all important when dealing with psoriasis. He needs a good support group.