Nose is blocked, still old runny nose how to do

Nasal congestion and runny nose are typical symptoms of rhinitis. Patients need to go to the hospital for blood tests to determine whether they are caused by infection or allergy. If they are allergic rhinitis patients, they can take anti-allergic drugs such as cetirizine and diphenhydramine as prescribed, or wash their nose with seawater to relieve nasal congestion.