"I stubbed my big toe yesterday morning. My nail is black. My toe is swollen and red. It's warm and painful. What should I do?"

Based on the symptoms described, it is advisable to seek medical attention, especially if the pain is severe, there is intense swelling, or if there is rapid progression of redness around the nail. Applying ice to reduce inflammation and elevating the affected area can help manage symptoms in the meantime. It is important to note that the discolored nail may remain until a new nail grows back, and it is possible for the damaged nail to fall off and be replaced by a new one during the healing process.