#AskTheExpert hi sir, my 5 month old male baby is having running nose and nose block. earlier he had same problem in 2nd month doctor prescribed hynasal drops. but here in Chennai it is not available and I have given nasivion s 2 drops morning and night.recently we are back from Kolkata to my native chennai. it is quite hot here in chennai and we are using ac for the past 1 weak. can we make by baby sleep in AC. keeping temperature at 28. please advice and also any remedies for running nose and nose block. I have started giving him mashed apple , carrot from last week. please advise diet also. thanks in advance.