What side effects should I watch for with the Light-activated gum care kit?

Methylene blue can stain oral tissues, dental materials, clothing, and nearby surfaces. Some staining may be temporary. Results vary. Mouth irritation, discomfort, or an unpleasant taste may also occur. The exact risks depend on the rinse concentration, other ingredients, and how the light device is used. Ask your pharmacist for the warnings that apply to your prescription.

Stop using the kit and contact your prescriber if you develop burning, new sores, worsening pain, or unusual swelling. Do not increase the treatment time or rinse amount. Seek emergency care for trouble breathing, fainting, or swelling of your face, lips, tongue, or throat.

Methylene blue also has important medication warnings. The risk with this rinse cannot be judged without its formula and expected absorption. Make sure your prescriber reviews your medicines and health history. If you swallow more rinse than directed, contact Poison Control at 1-800-222-1222 for advice. Ongoing gum bleeding, pus, or loose teeth needs a dental exam, not just a change in the kit routine.