Mercer Island Dermatology, led by Allison Hughes, MD, PhD, provides diagnosis and treatment for conditions affecting the skin, hair, and nails, including acne, rosacea, eczema, psoriasis, and skin cancer. The practice offers medical dermatology and cosmetic services such as Botox, Xeomin, fillers, laser and light treatments, Ultra Pulse CO2 laser, facial rejuvenation, and microneedling for patients of all ages.