Insurance is the worst! We pay for it and have to beg for coverage when we need it. Just like the medical system, insurance needs a major overhaul. That’s what we get when our government allows monopolies. I have had allergy shots at two different times in my life. I was stupid enough to get them again about ten years ago. First time early twenties and I never saw improvement. I think it’s a scam. Hopefully the asthma shot works for your son. If not research herbs and essential oils that help asthma. Sorry I can’t help, I don’t know a lot about asthma natural treatments. Yes, cutting out a food at a time is key. I haven’t done it yet because I really thought it was my new soap. Can’t be because I haven’t used it over a week. It’s getting more progressive by the day. I have been using the same laundry detergent for at least six months. I buy non toxic natural plant based detergent. I really believe it’s soy in processed foods. Time will tell.