Hello Mr Tapash Welcome to HCM The symptoms that you have mentioned are that of cold at the onset of winters. This is associated with climate change and it is an intrinsic body response to external enviorment. In simple words, it is an allergy developing to enviornmental change. The medicine prescribed is Montekeulast (Montek). This preparation helps to control the symptoms of allergy.few points that you should keep in mind: Do not discontinue the medicine without consulting your doctor. Keep it in tightly closed bottle out of reach of other children in family. In case you forget to give your kid the dose, then give it as soon as you remember. Do not use the medicine beyond the expiry period. There are some side effects of this medicine: Headache, dizziness, upset stomach, tiredness, stuffy nose, flue like symptoms, fever, eash, difficulty in breathing. If you experience any of these symptoms, consult your doctor. Regarding the future course of the disease, there is possibility of developing asthma in future. The further course can vary. You have to remain in touch with the treating doctor. Thanks and take care Dr Shailja P Wahal There are