Dust mites are one of the most important factors causing allergic rhinitis, which is currently treated with immune desensitization therapy. In other words, the dose is gradually increased from small doses to make the body adapt to this allergen, thus achieving a desensitizing effect. Currently, sublingual and subcutaneous injections are used, and the treatment period is not less than 3 years. If the symptoms of allergic rhinitis are particularly severe during this period, a combination of anti-allergy drugs and glucocorticoid nasal sprays may be appropriate to relieve the symptoms. If allergic rhinitis is clearly caused by dust mites, the usual prevention work is also particularly important. We should try to keep indoor air circulation, not to be overly humid, pay attention to removing dust, and wash and dry clothes, sheets and mattresses frequently. You can usually do outdoor sports activities and reduce the time spent indoors. When removing house dust you should leave temporarily and wait for the dust particles to land before entering the room.