Arnica montana is a homeopathic remedy made from the yellow mountain daisy plant. It is used to treat injuries, bruising, soreness, and symptoms arising from falls, blows, or physical trauma. It addresses symptoms like feeling sore and bruised all over, sensitivity to touch, bleeding from injuries, relaxation of the bladder and bowels, and alternating between feeling hot and cold. Arnica helps heal injuries, reduces pain and swelling, and promotes recovery from physical trauma.