The recover process varies based on the structure of the skin, and is generally 70% completed in the second month, 80% completed in the sixth month, and close to 100% completed at the end of the first year. This process may last for up to 2 years in thick skins but may decrease to as low as 6 months in thinner skins. The recovery process is closely related to the genetic structure of the patient, chronic diseases, age, alcohol and cigarette use, and nutritional habits.