If the patient has a low cranial pressure headache, the treatment plan requires replenishing the cerebrospinal fluid as quickly as possible. The following methods can be chosen: 1. Lumbar puncture with intrathecal saline injection for direct replenishment. Lumbar puncture can inject saline directly from the spinal canal to directly increase the amount of circulating cerebrospinal fluid in the patient’s brain, but it cannot be operated multiple times and can only temporarily relieve symptoms if the cause of the patient’s illness cannot be removed.2. Intravenous rehydration, often intravenous rehydration with balanced fluids or 5% dextrose saline, which can enter the central nervous system relatively quickly and leak out of the venous plexus to form cerebrospinal fluid.3. Oral Rehydration, also direct oral glucose saline, can be prescribed from the surgery oral rehydration salts, their own brewed directly after taking, 1 day the recommended amount of at least 2000ml or more.