I'm due to see a dermatologist next week for my crazily oily skin. I want him to prescribe low dose roaccutane for me and I was thinking of 5mg or 10mg per day. If he doesn't help me I will look to buy from an internet pharmacy (I know, I know). I will start off with 5mg a day. I'm 38 fwiw.
I disagree with Greentiger about the lavender and peppermint. Lavender is known for it's soothing properties as well as it's anti-bacterial ones. Lavender is one of the few essential oils that you can apply neat onto the skin. I did so yesterday and encountered no irritation at all. Diluted down to 5% for example should absolutely be fine. Lavender is widely used in skin and hair care: google the range from Dr.Organics to see an example.
I've used 50% peppermint oil as a spot treatment with no problems. If anyone is using the popular Dr. Bronners liquid soap then that is 2% peppermint oil.
Perhaps start with weak strengths and then increase over time?
I don't know about using ibupofren gel for acne but for the past month or so I have been using a 15% TTO lotion from Holland & Barrett at night. I just soak a small ball of cotton wool with the TTO lotion and dab it over my affected areas. It seems to be working very well. No irritation or redness, much nicer than even Dan's BP gel.
I do this 10 minutes after washing with a Neutrogena wash/mask that contains some salicyclic acid.
In the morning, when showering I use a TTO wash from Holland & Barrett that contains 1% TTO plus lemon, lemongrass & bergamot.
Acne and seb derm both stem (at least partly) from have oily sking. You'd probably find a topical antifungal like Nizoral cream helpful. Possible a medicated shampoo left on your face for a few seconds each day would help too.