Could it be possible that I'm doing something wrong when using my asthma medicine and forcing to much oxygen into my brain?
Possible, but not very likely. Your respiration is moderated by several internal feedback loops. If you're getting more oxygen, you're probably also getting rid of more carbon dioxide, so your respiration rate will slow down. You can consciously override that, at which point you may get too much oxygen, though... and at that point you may also run the risk of respiratory acidosis (like you get from hyperventilating).
What's a rescue medicine and what's a controller medicine for asthma?
A rescue medicine makes you feel better right away. A controller medicine is taken daily to prevent symptoms and exacerbations.
Has anyone ever tried Chinese medicine for asthma? Did it work?
Asthma by way of its indications can vary greatly, but at base, Asthma is no more than the swelling/inflammation of airways to where breathing is restricted.
This isn't a benign condition, but it is also smoke to a house fire.
Asthma is often an overreaction by the immune system where rescue-inhalers and daily doses of steroids keep it under control. Yet the irritant is still there, the immune system is still trying to address it and inevitably, the inhalers/steroids do not work as well as they once did. Inflammation is an adaptive mechanism. Suppressing it will force that adaptation.
I'll reiterate what said as far as 'Alternative Medicine' being secondary to primary care by a physician or a specialist. But as a bronchitis sufferer since childhood, I know that the treatment principles for restricted air intake is to 'reduce inflammation.'
A few words in regards to Traditional Chinese Medicine addressing Asthma: the diagnostic system for TCM is vastly different than those of an Allergist. The theory revolves around patient presentation and a remedy is tailored to more than dislodging an irritant, but also resolving the bodies' inability to cope with that irritant. Overall support of these systems (more than just pulmonary or lymphatic) is the treatment plan.
Cases like these require a practitioner.
A practitioner than can speak both languages will be well worth your time and money.
Is Singulair is the best medicine for Asthma? Does it Cure Asthma?
It depends on how you define "best." Singulair (montelukast) is one of the controller medications for asthma. It is a leukotriene antagonist. Some patients and doctors prefer to treat with Singulair rather than the other controller medications which are inhalers or injections. Randomized clinical trials suggest that inhaler steroids are superior to Singulair, but studies in real life populations have questioned whether this is true.