Medical dermatology is the diagnosis and treatment of skin lesions and skin diseases. Dr. Cohen provides medical dermatology services onsite at the Rosedale Dermatology Centre and through various medical facilities across Toronto. He treats problems like acne, eczema, warts, psoriasis, rosacea and skin cancer. As these consultations are a benefit of OHIP, a referral from a physician is required before an appointment for a medical consultation can be made.