Sore nose and blocked nose without fever can be seen in colds, allergic rhinitis, nasal polyps and other diseases. 1. Colds: Colds are mostly triggered by viral infections in the upper respiratory tract, which can lead to increased sensitivity of the nasal nerves, swelling of the nasal mucous membrane, leading to a sore nose, blocked nose, without fever, accompanied by runny nose, fatigue, dizziness, sneezing, and other clinical manifestations. 2. Allergic rhinitis: allergic reaction triggered by allergens, swelling and narrowing of the nasal mucosa, nasal nerve dysfunction triggered by soreness and blockage of the nose, without fever. During the onset of allergic rhinitis, patients usually have watery nasal discharge, headache, nasal congestion, and decreased sense of smell, and other symptoms will be more obvious. 3. Nasal polyps: Nasal polyps are caused by chronic inflammation stimulation leading to abnormal edema and proliferation of nasal mucosal cells. During the onset of nasal polyps, the presence of polyp tissue will cause the nasal cavity to become narrow, oppression of the nasal nerve triggered by sore nose, nose blockage, not fever symptoms. Nasal polyps may cause nasal congestion, snoring, decreased sense of smell, nosebleeds and other clinical symptoms. Sore nose, blocked nose and no fever can be caused by a variety of factors, and it is recommended to consult a doctor for a clear diagnosis after a systematic examination.