DEAR DR. ROACH: My future son-in-law was diagnosed with hemicrania continua several weeks ago by a neurologist and is responding to indomethacin. Could you provide a prognosis for this illness? The internet says that it can take anywhere from weeks to months to years. Is this likely the case? -- M.I.L.
ANSWER: Hemicrania continua is an unusual type of headache syndrome. It’s often misdiagnosed, wit…