Selenium sulfide is sold under the brand names that include Dandrex, Head & Shoulders, Selsun Blue and Versel. Selenium sulfide is made in the form of topical lotions, foams and shampoos to treat several skin-related conditions. You should consult your physician before using selenium sulfide medications to discuss possible health risks, side effects and negative interactions.
Uses
Selenium sulfide topical is an antifungal medication that treats yeast and other fungal infections of the skin, according to the University of Michigan Health System. Selenium sulfide shampoo is typically used to treat dandruff and seborrhea of the scalp. Some selenium sulfide topical medications are available by prescription only, while others with weaker formulations are sold over-the-counter, Drug Digest notes.
Function
Selenium sulfide works by affecting skin growth and inhibiting skin fungi, explains the University of Pittsburgh Medical Center. The medication inhibits excess skin growth to treat dandruff and seborrheic dermatitis. It also has antifungal actions that help to kill yeast and fungal infections of the skin.
Application
Never ingest selenium sulfide or otherwise take the medication internally, because it's meant for topical use on the skin only, the University of Pittsburgh warns. Also, you should keep the medication away from your mouth, nose and eyes, as well as any skin areas that are sunburned, chapped or broken, warns the University of Michigan Health System. You should follow the manufacturer's directions on the label or your doctor's instructions regarding proper application of selenium sulfide. Generally, you would rub the selenium sulfide topical foam onto the affected skin area, or apply the topical lotion to the skin area, leaving it on for about 10 minutes, and then rinsing it away with water, according to the University of Pittsburgh Medical Center. You should leave the selenium sulfide shampoo on your hair for about two to three minutes after lathering.
Side Effects
Potential side effects from using selenium sulfide medications include skin irritation ranging in severity and redness of the skin areas, Drug Digest says. If you develop a rash, experience severe skin irritation or see that your skin condition is getting worse, you should stop using the selenium sulfide medication and consult a health-care professional immediately, cautions the University of Pittsburgh Medical Center. Some people may be allergic to selenium sulfide, so stop using the medication and seek medical attention if you experience any signs of an allergic reaction, such as swelling in your face, difficulty breathing or hives, warns the University of Michigan Health System.
Warnings
Don't use selenium sulfide if you are pregnant, planning to become pregnant or breastfeeding. The U.S. Food and Drug Administration has ruled that selenium sulfide may harm a fetus, according to the University of Michigan Health System. Also, avoid applying any other skin products or medications to the skin area, because these could interfere with the absorption of the selenium sulfide medication or produce a negative interaction.


