My son is 18 year old and from last 6 month he is facing sinus and throat problems. Most of the time he feel some irritation in his throat and nose. A pale liquid like balgam is discharge down from his nose to throat and he needs to throw out the same from mouth. In this process he feel uncomfortable and some time he is feeling gas or indigestion also. His nose is also remain blocked at night. The problem is increased during the evening or night instead of morning or afternoon. Kindly suggest him any ayurvedic or homeopathic medicine to sought out his problem.