Hair pulling

I am looking for a remedy for a friend of mine. He is a very mild, kind temperament, but is very authoritative. He is always ready to help everyone around him and very rarely says no, but he does battle with anger issues (though he has pretty much 100% under control most of the time). He is very fastidious and likes order. When he is thinking he tends to rub his head and pull hairs quite a bit, which happens quite often because he has to think long and far over every decision he has to make. He also has no heat tolerance, sweating all the time, prefers cold rooms. Salad and fruit upset his system, but loves meat. He is also has quite a few bad allergies, cannot tolerate fragrance, pollen (cannot even eat anything with pollen products, immediately starts sneezing and sniffling), cat hair and etc. I should also mention, his father is a very strong authoritative figure and is disappointed in his sons decisions, choosing volunteer work over a career. Just trying to figure out which remedy would be best suited?