JOLVKA's hydrocolloid acne pimple patches are a safe and hygienic way to help reduce the size of acne pimples by absorbing their contaminants. Simply open the package, choose the size that is the closest match to a pimple, stick it onto clean, dry skin, and leave it on overnight. I used these patches on one varge inflamed pimple and 2 smaller ones, and the results were readily apparent the next morning. The swelling, redness, and pain were significantly reduced, and with no irritating overdrying of the skin.This brand is thinner than a brand I used previously, and I found that JOLVKA adhered better to my skin. There are 32 each of 3 sizes - 8mm, 10mm, and 12mm. The outer packaging includes clear instructions. For some reason, the inner instruction sheet was for their deep cleansing pore strips. However, they include a heart-shaped card with customer service contact information.