Advanced Care for Skin, Hair & Nails Dermatology encompasses treatment of diseases of the skin, hair, and nails. Dermatologists diagnose and treat adults and children for a myriad of conditions. Advocate Medical Groups dermatologists are highly-trained in leading-edge techniques and therapies. Special services offered include laser treatments, filler injections, and a variety of services performed by a licensed esthetician. Spa services by licensed staff include facials, waxing, microdermabrasion, and consultations for skin problems, aging skin, and acne.