The system desensitizes and finds out all the information about mice that makes you uncomfortable. For example, if you think of mice, you will feel uncomfortable when you see pictures. If you see the living, you will feel pain. List this in the order that makes you feel uncomfortable. Do relaxation training every day to relax your whole body muscles and spirit, and then slowly accept repeated training from this level, so that the information stimulation at these levels is slowly accepted by you, and you will not be afraid anymore. The length of time depends on the degree of stimulation.