👉 Sore is a medical condition in which there are small, red bumps or patches of tissue that appear on the skin. These bumps can be caused by various factors such as trauma, infection, or allergic reactions. Sores can range from small to large and may occur anywhere on the body. They can be painful and uncomfortable, but they usually resolve without treatment. Sore is also used in medicine for a condition called sepsis, which is inflammation of the heart caused by bacterial infections. In