Some people experience redness, irritation and dryness when using straight Tea Tree Oil on blemishes, however I have never had such problems. I actually get much less dryness than using Salicylic acid. When I feel a blemish popping up I will put a Q-Tip dipped in TTO right on it, and continue to do so morning and night until healed. I also have a patch of flaky skin on my scalp right at my hairline and will also swipe some TTO on that area once in awhile, since doing so I haven't had any irritation or flaking in that area!
TTO also works great on small cuts or small infections - I get small infected areas on my chest from my Lupus medication and TTO helps heal them better than Neosporin I feel.
Part of my acne problems since starting Methotrexate is constant breakouts on my back and shoulders, since those are impossible for me to reach I have to use a spray to get on my back. Right now I have a acne toner that contains Salicylic acid and I added TTO to it and I spray that morning and night to help keep my back as clear as possible. In addition, I also get irritation and bumps under my arms from shaving and deodorant - spraying under my arms prior to deodorant this mixture really helps keep the irritation down.
Tea Tree Oil lasts for ever, a little goes a long way and has so many uses head to toe. It does have a very noticeable scent, and you need to be very careful when applying it near your eye area (actually, just don't apply it near your eye area! ha) and it has fumes that stay in the air for awhile and can make some people cough. However, the scent goes away after awhile on your skin and no one will know you were using it.
Plus, when you use it as a spot treatment at night, or day, it won't affect your makeup and leaves no ugly white residue or dry cakey-ness that others can see.



