What are some medications that are prescribed for hyperacusis (sensitivity to sound), along with headaches?

Headache & Sounds: Phonophobia is the condition whereby headache sufferers, especially those with migraines, have their pain worsened with noise. The exact mechanism is not well understood, but suffice it to say the condition is quite common in such individuals. Therapy is often directed at management of the headache, not the perception of sound. Once the type of headache is diagnosed, the best med can be found.

Part and parcel: of the same thing. The hyperacusis is part of the headache syndrome, such as migraine. By treating the headache the other symptoms are often treated. Hence, if you are being treated for the headache syndrome, you are being treated for the associated symptom in this case.