I used a rosacea cream containing tea tree oil and east cape manuka oil I got on-line for my adult acne and it completely cleared away all of the acne. I am continuing to use it as it is even smoothing out and repairing old acne scars and it is keeping my skin soft. According to research, demodex mites are found in much higher levels in people with skin conditions such as adult acne and rosacea therefore it doesn't take a rocket scientist to work out that they must contribute to these skin conditions. According to research, these mites die and then decompose inside the acne/rosacea sufferers pores resulting in blockages and pus filled spots. They also release a bacteria when they die that can irritate your skin causing inflammation and redness. Research also shows that tea tree oil effectively kills demodex mites. I think this is really positive news for adult acne and rosacea sufferers and at least it pinpoints a cause of it.