Although moles may be a normal change associated with pregnancy, Beverly Hills Dermatologist Boris Zaks, M.D., suggests that a change in mole color and shape can also be a sign of precancerous or cancerous change. "A dermatologist will know if it needs to be monitored or biopsied," he explains.
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"Over-the-counter topical products containing salicylic acid or benzoyl peroxide are now considered safe for use in pregnancy given the very limited systemic absorption," said board-certified dermatologist Dr. Susan Bard, MD. She also notes that certain oral and topical antibiotics are considered safe as well as are certain chemical peels. She says that another good option is blue light therapy (which you can do at home these days, with devices such as LightStim for Acne, $169). It's ideal for patients who want to treat acne without using any medications.