Lactic acid, salicylic acid and urea are all keratolytics that are often used in the treatment of skin conditions such as psoriasis, dermatitis, eczema, corns and calluses. Drugs.com explains that keratolytics help to loosen and shed rough, hard, scaly skin.

According to the Humane Society of the United States, one third of American households have cats, and many families with cats have more than one. Millions of individuals have allergies to their domestic pets, and allergies are much more likely to occur in response to cats than to dogs.

Salicylic acid is an ingredient in over-the-counter (OTC) and prescription topical medications used to treat acne, psoriasis and some types of warts. It may also be used to produce a light cosmetic peel. Salicylic acid works by dissolving the top layer of skin and encouraging new skin to form beneath it.

A rash following exposure to a virus is a normal reaction by the body as it tries to fight the invading illness. Rashes may appear in any age group and frequently develop in children exposed to common childhood viruses such as fifth disease, or parvovirus.

A rash caused by skin contact with an allergen is referred to by the medical term "allergic contact dermatitis." Allergic contact dermatitis occurs when the body identifies a foreign substance as being a potential threat and responds by releasing chemicals called histamines.

Even if they don’t itch or hurt, bumps on your forehead can be a nuisance due to their highly visible location. The most likely cause of small bumps on your forehead, according to the American Academy of Dermatology, is acne.

Extreme sensitivity to ultraviolet rays (photosensitivity) may cause a red, itchy rash to erupt on the skin within a matter of minutes.

Rashes that involve the skin of the face can be caused by infections, irritations or inflammatory reactions. Local reactions cause a variety of facial skin rashes; however, some facial rashes can be caused by systemic medical conditions as well.

Cranberry is an evergreen berry shrub native to North America. This berry plant is used for treating bladder and kidney disease, yeast infection and helicobacter pylori infections resulting in gastrointestinal ulcers and dental plagues. An allergic reaction to cranberry is rare but possible.

Red pepper can refer to many types of capsicums ranging from mild bell peppers eaten cooked or raw to the fiery chili peppers ground as a spice to add heat to food. While these fruits originated in the tropics, they can now be found in the food of many cultures.

Babies have delicate skin, so they develop rashes more easily than adults. Because their skin is thin and unmarked by hair, old scars, sun spots and other skin conditions acquired with age, rashes also might be more visible on babies.

Women who are breastfeeding need to be particularly careful about what medications they take or use topically, since these can end up in breastmilk. You don't want to be accidentally medicating your baby, especially since even small doses of most drugs can be dangerous to children because of their smaller size.