Nose Block :
When something irritates the inner lining of the nose, it triggers swelling and mucus production. This is what causes congestion in the nose or a nose block. A nose block makes it difficult to breathe through the nose. It can also lead to headaches, sneezing and coughing. Such congestion usually clears up within a few days. However, it's important to consult a doctor if it does not subside in a week. Besides infections, rhinitis can also cause noseblocks. Rhinitis may be caused by allergens or environmental and hormonal conditions. A doctor will check the ears, nose and throat to diagnose the problem. The doctor may also order tests like nasal endoscopy and throat culture if necessary. The treatment depends on the trigger of the nose block. Typically, medicine and nasal sprays are prescribed to control the inflammation.