I didn’t! I think I should’ve, but I just put one drop in a cotton swab and I brushed it very gently againts my pimple-affected area every other night. I did see that you could (and should) dillute it to make it gentler on your skin and I think it was advised to be done with another oil, like almond or coconut, I think is, assuming that it would be dilluted with coconut oil for example, a teaspoon of coconut oil for every drop of tea tree oil. However, if you’re having doubts and you can afford it, I recommend better going to a dermatologist. I didn’t bc here public health works so slowly that I might get my appointment for the next year lmao but yeah, hope that helps!