An allergy to oral sulfur medications like Bactrim, Septra, Trimethoprim or Sulfamethoxazole does not necessarily predispose someone to be allergic to topical sulfur medications. If you are concerned about an allergy, first speak with your doctor and then (with their approval), try a sensitivity patch test before beginning to use UNBLEMISH Refining Acne Wash as follows:
- Apply a small amount of the cleanser on your jawline for 30 seconds, and then rinse it off.
- Repeat this process three times a day in the same area as originally applied, for three days.
- Watch for any signs of redness, dryness, irritation or swelling.
If you determine you are sensitive to UNBLEMISH Refining Acne Wash, discontinue use and substitute SPOTLESS Daily Acne Wash for your cleansing step.