Children allergic to household dust mites can be treated with general therapy and medication to relieve discomfort, and take preventive measures in life, and desensitization therapy if necessary. 1. General treatment: after the phenomenon of house dust mite allergy in children, they should promptly detach from the scene environment, open the window to ventilate and let the children go to the outdoor activities with fresh air to avoid the aggravation of symptoms; itching of the skin can be rinsed with saline, ice packs, to alleviate the local symptoms. 2. Medication: If the allergy to local skin symptoms, can be used externally with glycerite lotion to play the purpose of astringent, itching; if the symptoms are serious, systemic atopic dermatitis and other symptoms, can be taken orally anti-allergic drugs, such as loratadine, etc. for treatment; for allergic rhinitis, allergic asthma, etc., you can nebulize the inhalation of glucocorticosteroids, such as budesonide, etc. to alleviate the symptoms. 3. Prevention: In daily life, we should pay attention to change the bed sheet and clothes, etc. We can use hot water and sunshine to kill house dust mites; open the windows regularly to keep the indoor air circulating. 4. Desensitization therapy: If the child has allergic symptoms for a long time, and the condition is serious, with obvious urticaria, atopic dermatitis, allergic asthma, etc., specific desensitization therapy can be adopted to reduce the symptoms and shorten the duration of the attack. In conclusion, children with household dust mite allergy should go to the hospital in time and be treated under the guidance of the doctor.