There are two main methods of desensitization treatment: first, sublingual drug desensitization. Second, subcutaneous drug injection desensitization. These two desensitization treatments are mainly for mite allergy, for other allergens desensitization treatment is not recommended at present, because the desensitization treatment effect is not particularly good. Sublingual drug desensitization is relatively less expensive and simpler to operate, but the treatment effect may be relatively poor. Subcutaneous drug desensitization is more expensive and requires regular visits to the hospital for drug injections, so the cost is also higher. During the treatment process, regular follow-ups are needed to observe the recovery of the disease in order to clarify the treatment effect.