It belongs to a class of drugs called topical corticosteroids. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions. It isn’t known exactly how halobetasol works. It’s thought that it reduces certain chemicals (prostaglandins and leukotrienes) that cause inflammation and itching in your body.

Burning, stinging, itching, dryness or redness may occur when first applied to the skin. This should disappear in a few days as your body adjusts to the medication. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if you have any serious side effects, including: stretch marks, skin thinning/discoloration, acne, excessive hair growth, "hair bumps" (folliculitis).

Skin infections can become worse when using this medication. Notify your doctor promptly if redness, swelling or irritation does not improve.