Last year we discovered small patches on our 12 year old.  Within that week of noticing the hair patches, the following week he broke out in hives and had an allergic reaction to nuts.  Before the allergic reaction Peanut butter was on of his favorite foods to eat.  More testing showing thyroid levels were low, and within a few months he had almost full head hair loss and partial eyebrow loss.  BUT a few months ago we took him off his thyroid medication, which levels appeared to remain normal without the medication, retested him for nuts and he was no longer allergic.  And he had almost full head hair growth.  He seemed to be doing great, but we recently moved out of state and within the last few weeks, we noticed new patches of hair loss on his arms, legs, and now they're appearing on head.  In addition it seems his immune system (allergies) are acting up, his eyes are bothering him and noticed light skin discoloration on his face.  Not sure if it's related, or if it's just caused from the dry weather. This will be our 2nd episode,any words of advise.  Common triggers, what to be aware of and look out for?   Dr visits that can help?  Best ways to support our son?  Also is almost full scalp hair growth common in between episodes? Reading other blogs, I'm worried about new immune disorders that be triggered, new food allergies, or even lupus....any words of advise is appreciated. 

Also what is your advise on support groups?  We've discovered one locally, but our son has shared he needs more time to be ready before attending.