Kavya, lip biting , a bad habit induced localised hypertrophic depigmented patch on your lip. Do not worry, first of all avoid lip biting. Apply tacrolimus oint. 0.03 percent. twice a day. Take Tab. Vitamin C
500 mg twice a day ,Tab vitamin E
400 mg once a day, Tab beplex
forte once a day... Till you get good result. Do not apply lipstick, do no prick or bite the lip. If you develop lip biting habit again, take tab fluoxetin 10 mg once a day, or you may consult psychiatrist
. Be positive..I hope you will be alright.