Many people swear by nasal irrigation -- flushing out your nose with a neti pot. It breaks up mucus and reduces swelling, helping you breathe better. And it’s true that eating spicy food may help a stuffy nose get clear, at least for a little while.
Researchers can’t say for sure whether herbs and supplements work for allergies. Popular ones include butterbur, which may block some chemicals that trigger nasal swelling; quercetin, which may act like an antihistamine; and bromelain, which may help with congestion.