A dermatologist is a medical doctor who specializes in diagnosing and treating skin, hair, and nail conditions. They help patients with a variety of issues, such as acne, eczema, psoriasis, and skin cancer. Dermatologists are trained to perform skin examinations and can provide treatments ranging from topical creams to surgical procedures. In addition to treating diseases, dermatologists also focus on cosmetic procedures to improve the appearance of the skin. They may offer services like botox, chemical peels, and laser therapy to help patients achieve healthier and more youthful-looking skin. Overall, dermatologists play a crucial role in maintaining skin health.