Dermatologist: A dermatologist is a medical professional who specializes in diagnosing and treating conditions related to the skin, hair, and nails. They are trained to address a wide range of dermatological issues, including skin infections, allergies, acne, eczema, psoriasis, skin cancer, and other disorders. Dermatologists also provide cosmetic treatments such as Botox injections, chemical peels, and laser therapies to improve the appearance of the skin. They may perform procedures like biopsies, cryotherapy, and surgical excisions to diagnose and treat various skin conditions. Dermatologists play a crucial role in promoting skin health and helping patients maintain healthy skin throughout their lives.