Schizophrenia is a common disease in psychiatry, which has a relatively insidious onset, unclear etiology, chronic onset or sudden onset, prone to recurrent episodes and relapses, prone to decline, prone to residual symptoms, and prone to disability. Therefore, early detection, early diagnosis by a psychiatrist, and early systematic and regular treatment are necessary for recovery. The age of onset, early onset in childhood is called childhood schizophrenia, which is somewhat atypical of adult performance and not easily diagnosed, and requires an experienced psychiatrist to diagnose. The second age of onset is in adults, mostly between the ages of 18 and 28, with some onset at age 35 or older, and is called schizophrenia. The third age of onset is closer to old age or the onset of old age becomes late onset schizophrenia or geriatric schizophrenia. Patients with schizophrenia detected early and treated with antipsychotic medication have a 100% chance of being cured with whatever medication is effective and quick to work. There are many students whose early parents find that they are inattentive when studying, their academic performance declines, by impulsiveness, tantrums, tension with classmates, feeling that classmates bad-mouth them, talk about them, snitching in front of teachers, clashes and fights with classmates, often parents take them to consult a psychiatrist, or have a diagnosis of schizophrenia that rejects them, easily accepting the diagnosis of learning tension or anxiety, resulting in unsatisfactory treatment results. The best period of antipsychotic treatment is delayed, and when a psychiatrist is found to see them, a psychiatric examination reveals symptoms such as hallucinations and delusions. The early stage is the acute phase of increasing the dosage of drugs, generally 2-3 days to increase the amount of drugs, generally in a month or more than a month to increase to the therapeutic dose, individual patients with the dosage of drugs may be a large amount, to exceed the instructions for the use of drugs. After using the therapeutic dose, it should be taken for a long period of time, 2-3 months or 6-8 months, or longer, and this stage is the consolidation treatment. Emphasis is placed on treatment to achieve clinical cure, i.e., disappearance of psychiatric symptoms and recovery of social functions. Then enter maintenance treatment, which is usually more than 5 years. During this period, it is necessary to keep in touch with the doctor, who should continuously and carefully evaluate the mental activity and reduce the amount of medication appropriately according to the evaluation. Individual doctors may reduce medication too quickly, which may lead to recurrence or fluctuation of the disease. Maintenance treatment for more than 5 years gradually reduce the amount of medication, usually half a year or a year to reduce the amount of medication, after 3-5 years to stop, or in a small dose of long-term use of medication. Psychotherapy is required when medication is effective and there is most self-knowledge, and psychotherapy is mainly applied to cognitive therapy. The second relapse takes longer to treat than the first, and the remission takes longer than the first, and some may have to have residual symptoms. The third or more than three relapses require lifelong medication. The purpose of systematic and regular full treatment is to prevent relapse, prevent degeneration, and prevent disability. There is no addiction or dependence on antipsychotic drugs, there is a quantitative-effective relationship, and insufficient dosage to reach the therapeutic dose will not achieve the purpose of controlling psychiatric symptoms. Without medication, there is a problem of relapse. Schizophrenia requires prolonged medication, and inadequate doses have the problem of psychotic symptom onset. Just like hypertension and diabetes, if the dosage is not appropriate, the hypertension and diabetes will not be controlled. Antipsychotic drugs do not have the problem of taking bad brain.