Hello, Welcome to HCM Runny nose is a very common symptom of many underlying diseases.Most commonly due to cold weather,viral infection or allergies. Usually no treatment is required for this.It will subside on its own. Since its a viral infection,antibiotics are not of much help.I would suggest you to take 1.Home remedies llike-steam inhalations-4 to 5 times a day. 2.Keep your face insulated when you go out in cold weather. 3.If you are allergic to any substances,You might have to see an allergist and get a prescription for an allergy medication. 4.You can also try saline nasal sprays and vasoconstrictor nasal sprays. 5.Antihistamines-they won t cure a runny nose, no matter what the cause, they can provide some temporary relief. Thank you.