The early stage of trigeminal neuralgia mainly relies on drug treatment, and the most common and most effective drug is carbamazepine. The basic medication for trigeminal neuralgia is carbamazepine, which is effective in most patients. However, as the duration of the disease increases, the effect of carbamazepine gradually decreases, forcing patients to increase the dose, but as the dose increases, the side effects of the drug increase significantly, such as liver and kidney damage, nausea, dizziness, vomiting, ataxia, gait disturbance and logical confusion, and other side effects. Carbamazepine should be started in small doses and gradually increased. If the dose is increased to near the maximum amount, the dose increase should be stopped. High doses have been associated with adverse effects such as dizziness, drowsiness, nystagmus, liver damage, bone marrow suppression, and hyponatremia. Some patients are hypersensitive to carbamazepine and have a bleeding rash immediately after taking the drug, or in severe cases, generalized dermatitis and pruritus. The alternative to carbamazepine is oxcarbazepine, which has the same mechanism of action. If oxcarbazepine is also allergic, or if a small dose causes significant dizziness, gabapentin is recommended, starting with a small dose once or twice daily and increasing the dose every 2-3 days until the maximum amount is reached. Phenytoin sodium (sodiumphenytoin) can also be taken: it is an antiepileptic drug for trigeminal neuralgia and is less effective than carbamazepine. Other drugs such as clonazepam and baclofen also have some efficacy. Chinese medicine treatment: has some efficacy. In conclusion, if there are obvious side effects of drugs, or if large doses are taken for a long time and the efficacy decreases significantly, surgical treatment can be considered.