Headache and dry vomiting may be related to the following conditions: 1. If the patient is jet vomiting, it may be related to central nervous system diseases, including those caused by increased intracranial pressure. 2. If the vomiting is non-jet vomiting, consider whether it is related to elevated blood pressure, and advise the patient to have his blood pressure monitored. 3. 4. Also rule out whether there are eye diseases, such as glaucoma, increased intraocular pressure, Meniere’s disease, which may be accompanied by headache and dry vomiting, and this condition may also be accompanied by vertigo, visual rotation, tinnitus and other adverse conditions. 5. In addition to organic lesions, also rule out whether there may be functional problems, such as whether the patient is not sleeping well, not getting enough rest, and whether there was mental and emotional stimulation the day before. Neuropathic headache can also occur. Therefore, if the symptoms of headache and dry heaving occur, after the patient has been treated symptomatically, such as improving sleep and regulating emotions, but still not significantly relieved, the patient should go to neurology, quinturology, ophthalmology, and cardiovascular and cerebrovascular departments for necessary disease exclusion.