Ask the doctor: How can I control the negative effects of contraceptives?

Pregnancy hormones found in contraceptive pills seem to stimulate melanocytes (melanin-producing skin cells) to produce more pigment, especially in those genetically prone and in areas exposed to the sun. PHOTO | POOL

My sister uses contraceptives and is healthy. However, sometimes, she becomes constipated and her feet and fingers darken. What can I do to help her? Gerald

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