Sneezing, running nose and itching in the nose and throat are symptoms of allergy. Your primary treatment is to control those symptoms which medication. But if the allergic exposure is there then the symptoms will be persistent after stopping the medicine. So the main thing to do is to find out the substance which u are allergic to and avoid exposure to it.

If you are in Bengaluru, bring her to my clinic, otherwise search for a good Allergist in your city.