C.K.
I grew up with a diagnosis of childhood asthma. I decided to become a Respiratory Therapist to help others like myself. There are a lot of great allopathic medications and tests out there. The problem is, they treat the symptoms, not the cause. To properly diagnose asthma, numerous tests over 3-6 months need to be done.
After years of little relief, I sought out a Naturopath. Many of the foods that we eat weaken our body's natural defenses so we can't fight off normal colds. I followed the Eat Right 4 Your Blood Type Diet by Peter D'Adaamo and after 3 months felt like a NEW person. I'm a healthier adult X 10 years than I ever was as a child.
This part of the country has a high lung and colon cancer rate due to the stress and polution. Chest colds seem to take much longer to resolve in this area.
Wheezing can be a confusing symptom. It means the airways are constricted, but on the up side, it also means there is airflow.
The mucus is a side effect (another symptom) that his airways are irritated. The more he coughs, the more irritated his airways will become, thus producing more mucus- Yes, it's a vicious cycle. So, an effective cough suppressent is necessary. When it gets to the point where he's not sleeping and it's gone on beyond 2 weeks, he difinately needs a stronger suppressent; one with codiene may be necessary so he can sleep and 'heal'.
As a mom, you want to help, but he's also an adult and needs to listen to his own body and learn from his experiences.
It sounds like his doctor is competent, but he can only treat what your son tells him.
However, I suggest he get allergy testing done. Skin tests are not as reliable and often give false results. The best allergy test is via a blood sample. Your son will be given a variety of foods that he'll need to eat 3 times/day X 3-5 days and then have his blood drawn immediately after. It's not a cheap test (around $250) but will help determine which allergens are weakening his system. He's still young. This test might eliminate or reduce costly medical bills that will plague him in the future and justify the cost. If your son is not willing to do this at this time, see if he'd be willing to change on his diet.
Hope this helps.