Hi. Greetings. You'd definitely could be having a tan especially due to prolonged long exposures during your travel to college. You'll need to use a sun screen on a regular basis. De tan creams and procedures like chemical peels and micro derm abrasion Weill also help. See a qualified dermatologist for the same.. Home remedies - I do not recommend - I am not sure if it's really helpful but application of yogurt / basan powder etc claim to reduce tan. Hope this helps. Let me know if you need any further assistance in this regard. Warm regards. Dr Govind S Mittal, Excel care hospital.