I Have had pimples for a long time. A few months back I seeked help from a natural healer. He asked me what I ate over the last 6 meals.
He indicated that my diet was very acidic and requested I remove dairy and reduce meats and acidic fruits.
He gave me an calcium, magnesium and vegetable powder alkaline supplements.
He also had me onto calytrix extract, it is a liquid from a flower that I placed on the pimples.
Within 2 weeks my pimples have cleared and have not had to use the Calytrix extract since.
I still take the alkaline supplements and while not dairy free, I try to reduce my dairy intake.

Not sure if you can post the brands here, but the pH supplements was from Seven point 2 and the Calytrix Extract was from Calyessence.