1. The document discusses the evaluation and treatment of various head, ocular and facial pain conditions. It covers taking a history, performing a physical exam including vital signs and neurological assessment, and considering neuroimaging if certain red flags are present. 2. Common headache types discussed are migraine, tension-type and cluster headaches. Migraines can present with or without aura and are characterized by pulsating pain aggravated by activity. 3. Trigeminal neuralgia, also called tic douloureux, presents as unilateral facial pain triggered by activities like chewing and is caused by vascular compression of the trigeminal nerve. Treatment involves medications or surgical decompression.