The worldwide market for prescription dermatological products reached $23.4 billion in 2016, growing at a rate of 9.3% from 2014 to 2016, according to Kalorama Information. The New York City-based market research firm said that the antiaging and photodamage, psoriasis and skin cancer treatments dermatology drug sectors showed the most dramatic gains.  Sales of prescription acne and rosacea, dermatitis and seborrhea, fungal infection, hair loss/removal, hyperpigmentation/melasma and miscellaneous...