Hello Shubhangi, Welcome to healthcare magic. 1) For your pimples, you could benefit from using a gel containing 1 % Clindamycin gel in the morning and 2.5% Benzoyl peroxide gel at bedtime. Use a mild cleanser like Cetaphil OS cleanser to wash your face. Drink plenty of water. Avoid fried foods and sugary foods. 2) For the tanning, you could use a gel containing 6% glycolic acid at bedtime. Use a gel based, broad spectrum sunscreen with SPF 30 and above every 4 hours to prevent further darkening of the skin. Repeat application every 3-4 hours. You could get chemical peels like glycolic acid peels done by a dermatologist. You could also use a vitamin C containing serum at bed time before the application of glycolic acid gel. Hope this helps you. Take care.