Uneven skin tone on hands and feet. Can this be treated without side effects? (Photo)

My arms and feet are very dark as compared to my face and neck. My lower lip in middle is lighter but corners and upper lip is dark.. At the time of my birth i had jaundice so doctor kept me in the machine fitted with bulbs and asked parents to keep me in sunlight for so many months and for many hours.. Is this uneven skin tone due to that.. Can this be treated without taking any thing which will cause any side effects??