Let's take a minute to talk about your medication. 

This is Benzoyl peroxide. It helps treat certain skin conditions, like acne. It may have other uses, too. 

Benzoyl peroxide is applied topically to the affected area of skin. You should use it exactly as your doctor tells you to. Benzoyl peroxide is available as a gel, cream, foam, and wash. You should read the "Instructions for Use" for full information. If you still have questions, your doctor or pharmacist can help. 
Most people tolerate this medicine well. Common side effects include skin dryness and irritation. This is normal if it is mild and should go away. If possible, you should try to avoid using this medicine on skin that gets a lot of sun. Be sure to protect the treated skin with sunscreen and protective clothing. Also, you should not use tanning beds or sunlamps. If these or other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. 
As with any medicine, rare but serious side effects could occur. You should read the Patient Information Sheet to know which symptoms to watch for and when to report changes. 

Women should check with their doctors before becoming pregnant and before breastfeeding.

Benzoyl peroxide can interact with other medicines. You should always check with your doctor or pharmacist before taking or using other medicines. 

For best results with Benzoyl peroxide, follow the "Instructions for Use."