Hello Welcome in H.C.M. I have gone through your query regarding treatment for phlegm and suffocation. Though you are already taking medicines for it but your problem is still persisting. I would like to tell you that your symptoms indicates that disease process had involved your both upper and lower respiratory tract. Therefore you should consult your ENT doctor and pulmnologist for thorough examination, necessary investigations to find out the extent of disase and pathology behind it, only than effective plan of treatment may be plan out. Regards.