Compositions and methods for treating tar-responsive dermatological disorders are described. In particular, an anhydrous tar composition including a liquid wax and a therapeutically effective amount of tar in an anhydrous solvent, the composition being in liquid form at room temperature is described. The anhydrous tar composition can be topically applied to skin of a subject for treatment of tar-responsive dermatological disorders, such as psoriasis, eczema, atopic dermatitis, seborrheic dermatitis and pruritus.
