I have a scab on my mouth and a cut on my chin that's not healing is there anything that will make my skin grow back?

Wound healing : Have you had any problems with wound healing in the past? Delayed wound healing can be caused by a number of factors. Chronic illnesses, such as diabetes or other immune diseases, can cause delayed wound healing. The environment of your skin can also be a factor. For example, moist areas may cause healing delay. Nevertheless, I would seek medical attention.