There is no clinical method of reducing coronal sensitivity training. Reducing coronary sensitivity is mainly used for the treatment of premature ejaculation, which can be treated by local medication, oral medication, injection needles and other methods. 1. Local medication: patients can use drugs such as lidocaine cream locally under the guidance of a professional doctor for the treatment of premature ejaculation. 2. Oral medication: patients can take dapoxetine, sildenafil and other medications under the guidance of a professional doctor for the treatment of premature ejaculation. 3. Injection: under the guidance of professional doctors, patients can take injections such as hyaluronic acid injection near the coronal groove, which can make the sensitivity of the coronal groove area reduced, thus achieving the effect of treating premature ejaculation. 4. Physical therapy: In addition, physical therapy can be used for desensitization training. In short, when there is a premature ejaculation, it is recommended that targeted treatment be carried out in a regular hospital.