A sniffle, should be referred back to the sniffle, will sniffle nosebleed may be due to force sniffle, air dryness and other physiological factors, without special treatment; may also be atrophic rhinitis, nasal septum deviation and other diseases, the patient needs to comply with the doctor’s instructions for drug treatment, surgical treatment, and so on. 1. Physiological factors: Usually, if patients usually inhale the nose too hard or the air is too dry, they may have nosebleeds as soon as they draw their noses, which is a normal physiological phenomenon and does not need any special treatment. Most patients can improve their symptoms after improving bad habits and air humidity. 2. Atrophic rhinitis: Usually, patients need to use saline or potassium permanganate to rinse the nasal cavity, and with the use of compound peppermint nasal drops, cod liver oil nasal drops, etc., to lubricate the mucous membrane of the nasal cavity. Some patients can also use 1%~3% streptomycin liquid nasal drops to fight infection. If the effect of conservative treatment is not good, anterior nostril closure surgery, nasal mucous-periosteal embedding surgery can also be performed. 3. Nasal septum deviation: usually patients need to follow the medical advice for nasal endoscopy for nasal septum submucosal correction, and part of the combined sinusitis patients, but also the use of mometasone furoate, fluticasone propionate and other intranasal hormones, to improve the symptoms. When the phenomenon of nosebleed starts when inhaling snot back, actively seek medical treatment, make a clear diagnosis after systematic examination, and standardize the use of medication and treatment under medical advice.