Persistent or chronic rhinitis is a runny nose that lasts longer than 12 weeks, says Dr. Natalie Earl, an otolaryngologist at the Centers for Advanced ENT Care—Feldman ENT Division in Maryland ...

Dr. Kanwar Kelley, an ENT in California and cofounder of Side Health, said the fluid from the sinuses could travel through the narrow Eustachian tube that connects the back of the nose to the ...