Belladonna (Deadly Nightshade) is a homeopathic remedy made from the Belladonna plant (Atropa belladonna), known for its potent action in treating acute inflammatory conditions, particularly those involving fever, inflammation, and excessive heat in the body. Belladonna is most commonly used for sudden, intense illnesses, such as high fevers, headaches, infections, and inflammations that come on rapidly and are accompanied by restlessness, delirium, and throbbing pain.

This remedy is especially helpful for sharp, stabbing pain that worsens with touch or motion and is often characterized by redness, heat, and pulsation in the affected area. Belladonna is ideal for acute stages of illness, especially when symptoms come on suddenly, and the person feels as if they are experiencing an overwhelming surge of heat or intense discomfort. It is also beneficial for people who become delirious or restless during illness.