A naturally occurring acid, azelaic acid can help people who suffer from acne and rosacea. It promotes the body’s skin to renew, which also helps reduce the creation of new pimples and blackheads. It can also directly eliminate the bacteria that causes both acne and rosacea.

Typically, people with acne or rosacea have sensitive skin, so it’s important to follow the directions provided by your doctor and prescription label. Otherwise, your skin may react severely.

Before applying the azelaic acid, wash your hands. Then, put the recommended dose of azelaic acid on the affected area. Do not let anything else cover the area once the acid has been applied because that might cause your body to absorb more acid than necessary, which could be quite damaging.

Even if you don’t see improvement right away, keep applying the azelaic acid. It can take up to four weeks or longer before your acne or rosacea diminishes.

Conversely, if you don’t see any improvement after 12 weeks of use, azelaic acid may not be for you. Talk to your doctor first before making any medication changes.

When applying azelaic acid, make sure that you do not put it anywhere in your eyes, nose, mouth, rectum, or vagina. If you’ve done so accidentally, rinse the applied area with water.

Likewise, make sure to avoid applying azelaic acid to skin that has yet to heal from  sunburns, windburns, dryness, soreness, irritation, or cuts.

To avoid further skin irritation, don’t use skin products that involve harsh soaps or skin cleansers or products that have alcohol, spices, astringents, or lime.

Your doctor may also warn you against spicy foods, hot foods/drinks, alcohol, and many other foods and drinks that might make your skin flushed or red.

As you treat your sensitive skin, you may end up dealing with some common side effects from azelaic acid, such as skin that feels like it’s burning, stinging, or tingling. Or you may find that your skin is dry, itchy, peeling, and red.

If you feel a very harsh and severe form of any of the previously mentioned side effects or if you notice a change in your skin’s color, stop taking the medication and call your doctor immediately.