Federal health officials are warning consumers who use anti-acne treatments about rare but potentially deadly allergic reactions that can cause swelling of the face and difficulty breathing.
The Food and Drug Administration says the problems have been reported with gels, face washes, pads and other products that contain benzoyl peroxide or salicylic acid. But the agency says it's unclear whether those ingredients or some combination of other substances trigger the reactions.
The over-the-counter treatments are sold as Proactiv, Neutrogena, MaxClarity, Oxy, Aveeno and other brands.
For now the agency wants consumers to stop using the products immediately if they experience tightness of the throat, breathing problems, lightheadedness or swelling of the eyes, face or lips.
Regulators say the problems are much more serious than rashes often seen with skin products.