How do these patches work? These are small, adhesive patches that absorb pus and oil from  acne blemishes. Provide a healing, moist environment. Protect the area from bacterial contamination by lowering the pH levels thereby creating an acidic environment. Deliver active ingredients such as salicylic acid or tea tree oil, both of which are very effective in acne treatment. How to use? Cleanse your face and gently pat your face with a facial tissue / face towel. Apply the patch…