Variously called Death Day, Decision day, and a number of other less kind words, D-Day was the day that the Allies began the big push from the coast of France all the way to the heart of Germany, ending WWII.
More importantly when it comes to cystic acne, tea tree oil can be harmful to your skin when applied in high concentrations. Some individuals have reported severe skin irritation and allergic dermatitis after applying too much tea tree oil, or applying the proper dose too frequently.
Acne Treatment. A common use of Tea Tree Oil is as a natural Acne treatment. An effective remedy is to dab a cotton swab into tea tree oil and then gently apply the oil onto affected areas before goin to sleep. In the morning, rinse off the oil and wash your face as usual.