What helps children who have bad anxiety problems?

I'm trying to find any type of activity or ways to help my son cope with anxiety. He is going to see a specialist soon but I can't stand the fact that they may put him on medication. He is already taking multiple medications for his asthma and allergies. Also, we did go through trying concerta/ritalin for his ADD and that caused him to have TICS which luckily went away a week after taking him off those drugs. Because of this, now I have to worry about giving him other medications that will bring out his TICS. Singulair is one of them which the doctors found odd. They put him back on Singulair for one week last year when his asthma got bad and sure enough, the TICS came back. I stopped giving it to him 2 days later and it went away again. I was told by a specialist that he won't get full blown Touretts when he gets older which I'm grateful for. If any doctor says that Ritalin and those types of medications don't cause TICS, don't believe them. My son never had any issues with this until he started taking that family of drugs. Anyway, back to the subject....does anyone have any anxiety release ideals that perhaps they or you use to relieve their or your anxiety. It is now effecting his school work which is causing me concern. Thank you.