Belladonna is a homeopathic remedy commonly used for sudden fever with perspiration, headache and confusion. Other indications for its use include hot, red facial skin. Mouth and throat can be very dry and red as well. Can be worse after 3:00pm and midnight. It is also used for boils. Its made from a perennial herb that has been valued for its medicinal properties for over five centuries. Belladonna can be identified in the wild by its bell-shaped, purple flowers and cherry-sized green berries that mature to a dark purple or black color. The homeopathic remedy is made from this plant.