I have small pimples almost all over my face, some are red, others are colorless. My main concern is my forehead. I also get occasional cysts mostly by my nose. Currently I wash my face with African black soap and jojoba oil. My acne keeps getting worse and worse everyday! There is almost no smooth, clear spot on my face.
I would say try a different cleanser. My derm always says that being gentle on the skin is very important when you have acne. I use Cerave cleanser and moisturizer; I switched from Cetaphil because I didn't feel like it helped my skin. Tea tree oil may just dry out your skin and cause further redness, but you could try it if you wish. Are you on any medication or using any topicals?
You could try incorporating a toner that contains AHA or BHA. These are exfoliating products and may help with the small bumps. I used the BHA toner from Paula's Choice and it completely cleared my forehead bumps. It broke me out first, but that was just those bumps surfacing. It didn't get rid of the acne on the rest of my face though unfortunately, but it definitely helped with skin tone.