Mometasone, a corticosteroid, works by blocking prostaglandin's production (chemical messengers), which makes the affected area red, swollen, and itchy. Terbinafine is an antifungal medication that interferes with fungi growth leading to the fungal cell's death. Mometasone & Terbinafine is a dermatological medication primarily used to treat fungal skin infections. It is used to treat various skin conditions like eczema, psoriasis, ringworm, athlete's foot, jock itch, dermatitis (itchy, dry skin or rash), and tinea versicolor (lightening or darkening of the skin of the neck, chest, and arms, or legs). Eczema is a skin condition associated with inflamed, itchy, cracked, and rough skin patches. Psoriasis is a disease in which skin cells multiply rapidly to form bumpy (uneven) red patches covered with white scales. Fungal infection occurs when a fungus invades and affects the tissue on the skin.