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.
Tea tree oil is great for acne because it has germ-fighting properties. It is an anti- inflammatory, antibacterial and antifungal agent. It can reduce the swelling that pimples cause and remove the bacteria that cause your breakouts. Pro tip- Mix tea tree essential oil with with jojoba oil to help dilute it.