I think that both have alot to do with alergies. I think with all the additives in our food these days is causing alot of these type of problems. I have found Noni Juice to help level the body out. natural healer all natural. there is a webite for this www.discovernoni.com/96109
has helped my husband SO much, also MSM 2000 he was so bad before he started taking these, he couldnt work. he is 95% better! saved my marriage