How do I treat cluster headaches?

Need effective meds. Sorry you have these most terrible headaches for which typical pain medication - even narcotics, are completely ineffective. Good news is the right medications (sumatriptan, oxygen, Lidocaine in the nose) rapidly turn a cluster headache off once it starts, and that many strategies for prevention of headaches are also successful. Key is accurate diagnosis + compassionate treatment by an expert md.
See a neurologist. There are many ways to treat acute as well as prophylactic treatment. See a neurologist. Treatment is individualized and is sometimes on trial and error base.