hi i no someone who had an extreme case of what you just described, all down one side of his face was agony and his eye went blood red, sometimes to the extent he could do no more then clutch his head and rock.

he had two seations of acupunture which unblocked his sinuses and then he did push ups and weight lifting during a headache to take the blood away from his head, and instead get it pumping everywhere and that stops them, try it