The phlegm may be related to the cold not completely cured, cold induced bronchitis, pharyngitis, etc., according to the cause of the treatment.1. When the cold is not completely cured, there will be itching in the throat, phlegm increase phenomenon, at this time do not worry too much, the cold will get better, the above discomfort will be cured. 2. When a cold induces bronchitis, the phenomenon of phlegm in the throat will also occur. At this time, the use of cephalosporins such as cefuroxime or penicillins such as amoxicillin for anti-infective treatment. 3. When cold induced pharyngitis, you can take watermelon cream tablets and other treatment. In addition, patients should also pay more attention to rest and warmth, reduce the consumption of spicy and stimulating foods, quit smoking and drinking, drink more warm water, etc., in order to promote the recovery of the body. There may be other reasons why your throat is uncomfortable with phlegm after getting over a cold. If this symptom persists and cannot be relieved, you should go to the hospital in time to get a clear picture of the cause of the illness and then carry out targeted treatment and therapy. The above medications should be used in a standardized and rational manner under the guidance of a professional physician and pharmacist.