Respected Hazrat Hakeem Sir Assalam-o-Alikum! You are guiding billions of humans. Allah  جل جلالہ will give you reward of it in world and here after. I have one tip which I am writing for those mothers whose children are right now is young and they are worried from the upcoming winters. Well adults can also use this tip. When I was in Karachi, the elder son who was only of 6 months at that time, in his chest was much mucus. I used many medicines but for some time peace would come and then chest would get bad. One woman used to live with our house. She told me that take 1 local garlic clove and burn it on fire. When it gets red nicely, keep it for cooling. Then keep it in spoon and softly hold it and press it with finger. That clove of garlic will become very thin. Mix same amount of honey and make the child taste it. After some time, the childwill do vomit or motion and will excrete all mucus along with it. (Saima, Gujrat)