<s>[INST] Hi, My name is Ayush and iam 29 years old...i am suffering from sneezing problem. whenever i come under fan from outside i start sneezing and its opposite too, whenever i go outside from house i start sneezing due to temperature change. please advice, now a days it frequently happening with me, iam sitting in one room under fan and if i go to other room where fan is off, i start sneezing due to sudden change of temperature. [/INST] Hello Sneezing due to change of temperature is a characteristic feature of allergic rhinitis. Inflammation of nasal lining membrane is the main reason of such symptoms. Predisposing factors for sneezing are :Major allergens found in houses, so try to avoid them, these are dust, mite, pollen, fumes, sudden increase or decrease in temperature (as in your case),pests smoking (active or passive). Use vacuum cleaner and dehumidifier in house. If possible avoid the use of fan and install air conditioner. When such patient visit I prescribe them to take montelukast=levoceterizne tablet once in the night. Hot coffee and steam inhalation also provide relief. Since this medicine is a prescription medicine, so consult your physician and get a prescription. Good luck. </s>