Ditto, ditto, ditto Asra!
All body parts are necessary to good health. Unless something is about to burst and toxify the rest of the body, it is good to keep it! The situation with the adenoids is not that they are not working right but that they are protecting the rest of the body. When a body part is inflamed it has taken all the toxins and localized them. For instance, when tonsils are inflamed with strep they are protecting the heart from a strep infection. Yes they are painful but better the throat than the heart. The same with the adenoids. Look for the causes of the inflammation. Like Asra said, it could be a food allergy. Or it could be a matter of too many synthetic toxins in his body. This happens OFTEN today due to the synthetic chemicals in our foods (pesticides, preservatives, hormones, antibiotics), formula even, and synthetic toxins in our laundry detergents, our shampoos, etc...
My first piece of advice is to detox your house and his little body, then see if there is still a problem. It may completely go away. My youngest daughter's diagnosis of ADHD was removed after I detoxed our home. My oldest daughter's doctor wanted her to get tubes in her ears and our chiropractor helped so much with her immune system that we never had to deal with them. Chiropractic does wonders for ear infections and sinus infections. The reason tubes are expelled is because they are foreign to the body and the body is rejecting them.
K., it's so much scarier for us when our little ones are sick. Keep researching. You're doing the right thing. If you want more information about detoxing, feel free to ask me.
God bless,
M.