Tetracaine (HCL) Used in ointments to numb the skin. 

Zinc Acetate is widely used in anti-itch topical medications

an immunomodulating agent used topically, mainly in dermatology to treat inflammatory skin conditions such as atopic dermatitis (eczema). It belongs to the calcineurin inhibitor class, which includes tacrolimus, and works by suppressing the immune response that leads to inflammation

semi-synthetic derivative of azelaic acid with a symmetrical diethanolamide structure. It belongs to the ALIAmide class, which includes compounds known for their cannabimimetic, anti-inflammatory, and analgesic effects, believed to work by down-regulating mast cell activity

a resin derived from the roots and rhizomes of Podophyllum species (like American Mayapple or Indian Podophyllum). It's a crude mixture containing several cytotoxic lignans, the most active being podophyllotoxin. It is typically prepared as a 10-25% solution or tincture for topical application.