A dermatologist is a medical professional specialized in diagnosing and treating conditions of the skin, hair, and nails. They address various skin concerns, such as acne, eczema, psoriasis, and skin infections, utilizing their expertise in dermatology and advanced treatment methods. Dermatologists also provide preventive care, perform skin screenings, and offer guidance on skincare routines and products. With their knowledge and experience, dermatologists play a crucial role in promoting healthy skin, addressing dermatological issues, and improving overall skin health and appearance.