If someone drinks alcohol, they may develop a throbbing headache as the alcohol wears off. Hangover headaches typically cause throbbing on both sides of the head. There are several ways that alcoholic drinks can cause headaches. Alcohol can dilate blood vessels in the head, cause dehydration, or inflammation, all of which could cause a headache. Some alcoholic drinks contain other substances, such as sulfites, which also trigger headaches in some people. Migraine causes moderate to severe headaches that typically affect one side of the head. The best treatment for a throbbing headache depends on the cause of the pain. Headaches caused by alcohol or caffeine withdrawal will improve on their own. According to NIAAA, there is no proven way to speed up recovery from a hangover. Sinus pain caused by allergies may improve with the use of antihistamines, nasal sprays, and avoidance of allergy triggers, such as dust. If a bacterial infection causes sinus pain, a person may need to take a course of antibiotics. For migraine headaches, treatment can be more complex. A person who experiences regular migraine headaches may benefit from trying to identify triggers. They can do this by keeping a diary. However, in some cases, there are no clear triggers. According to the National Headache Foundation, a doctor may prescribe medications that prevent migraine headaches from occurring, such as beta-blockers, or medications that a person takes during an attack, such as 5-HT agonists. Cluster headaches may improve with oxygen treatment. A doctor can provide oxygen at the hospital or at home with a prescription. Alternatively, a person may benefit from medications such as sumatriptan or ergotamine. Identifying and avoiding triggers can reduce the frequency of regular headaches. However, some people may need long-term treatment. A doctor will be able to diagnose the type of headache someone has and recommend the next steps.