Like any medication, treatments for skin conditions can cause side effects. These vary from person to person, and most are minor. Many people don’t have side effects at all. But in rare cases, they can be serious. Here’s a look at some of the possible side effects of skin condition treatments and ways to manage them if they happen to you. Some of the most common side effects are: Skin irritation. This is the most commonly reported side effect. You might feel itching, redness, or a burning sensation. If you experience skin irritation, tell your doctor about it. To control these symptoms, you might: Use a moisturizer to soothe the skin. Avoid using harsh soaps or skincare products. Wear loose-fitting clothing to reduce friction. If the irritation is severe or doesn’t go away, talk to your doctor. Allergic reactions. Some people have an allergic reaction to the medication. Symptoms can range from mild to serious and include: Rash, hives, or itching. Swelling in your face or throat. Difficulty breathing. If you notice any signs of an allergic reaction, tell your doctor right away. If you have a milder reaction, they might tell you to take over-the-counter antihistamines to relieve the symptoms. If you have swelling in your face or throat or a hard time swallowing or breathing, call 911 or go to the emergency room. In some cases, you might not have a reaction the first time you use the medication, but you might have one later on. When you have an allergic reaction, your immune system mistakes the drug or ingredient for something harmful. It then produces antibodies to fight the substance. But sometimes this takes a while, and the reaction doesn’t show up until the next time you use the medication. Before you start any new treatment, let your doctor know about any other medications, vitamins, or supplements you take. Always use your medication exactly as your doctor tells you to. And read the full printed guide that comes with the medication. This can help you know what to expect. Keep a list of any side effects you notice. If any interfere with your daily life or don’t go away, tell your doctor. You can report serious side effects directly to the FDA at 800-FDA-1088 (800-332-1088). You can also alert the drug manufacturer about the side effects.