Complete Guide to Treating and Preventing Postnasal Drip

👃 Postnasal drip often develops as part of a cold, the flu, or a sinus infection. But allergy symptoms can also lead to postnasal drip. If you don’t know your allergy triggers, work with your allergist to identify them. We partnered with Dr. Bill Berger, a board-certified allergist/immunologist expert, to learn about postnasal drip symptoms and treatments, on an Ask the Allergist video in collaboration with the American College of Allergy, Asthma, and Immunology. https://allergyasthmanetwork.or