13-year-old son with alopecia totalis

My son developed patchy hair loss at age 4 that developed to total baldness by age 5; he was vaccinated with MMR and polio X3 starting at age 2; his left eyebrow has disappeared in the last 6 months, he has reading difficulty (mild dyslexia), does well in school,history of rashes since age 3, mainly on the tops of the feet and currently has peeling skin on the soles and heels, he is very laid back, unemotional, noncommittal, generally happy, averse to touch and hugging anyone besides his parents, has always had soreness palpation, esp. through the upper thoracic areas, good appetite, esp. for carbs, simple and complex, spicy food, garlic, but dislikes most fruits and veggies, gets hot easy, loves cold, as a younger child often had head sweats while sleeping, poor aerobic endurance, often leans over and rests head and upper body when sitting, rarely gets sick, bedwetter until age 11 and sometimes has very frequent urination. Any suggestions for help with the alopecia?