Aconite [Acon]
Aconite suits active cerebral congestion from heat of the sun or due to sudden emotional excitement. It suits the first stage of idiopathic inflammation of the brain,thirst,delirium and vertigo point to it. Any noise or light will aggravate the condition,and the eyes feel as if starting from their sockets.
Belladonna [Bell]
This remedy has congestion and cerebral irritation with hot head, cold feet,throbbing carotids and headache. There are sharp, shooting pains in the head,which make the patient cringe. These pains are stabbing, come suddenly last indefinitely and cease suddenly, and they may be accompanied with vomiting. It is the prime remedy in the cerebral congestions of childhood. The child will bore the head into the pillow, have strabismus and convulsions. There is also a stupor out of the which the patient can hardly be aroused, and when aroused is very violent and delirious. Glonoine is very similar; it has a great rush of blood to the head and a sensation as if the head were enormously large and crowded with blood. It is aggravated by bending backward, relieved by motion and uncovering the head, while Belladonna is relieved by bending backward and by covering the head and is aggravated by motion.
Hyoscyamus [Hyos]
Hyoscyamus is suitable for cerebral inflammation with pulsating waves through the head, relieved by shaking the head or sitting with the head bent forward, which is the opposite of Belladonna. Kali bromatum. This remedy has numb sensations in the head brought on by overwork.