Wisdom tooth pain can become quite sharp when the gum around it gets inflamed or infected, or when food gets stuck in that area. It often feels worse at night because lying down increases blood flow to the head, which can make the throbbing more noticeable. For tonight, simple home care can give temporary relief. Rinse your mouth gently with warm salt water a few times to help reduce irritation and clear any food particles. A cold compress on the outside of the cheek can also help numb the area and bring down swelling for short periods. Try sleeping with your head slightly raised, and avoid chewing on the painful side. It is better to stay away from very hot, cold, or hard foods until you see the dentist. A pain reliever may help you sleep better, but use it only if you normally tolerate such medicines. Since you already have a dental appointment tomorrow, that will be the best step for proper treatment. If the pain suddenly worsens, swelling increases, or you develop a fever or difficulty opening your mouth, it is better to seek urgent care.