Try my recommendations for a week and see if it helps any.
It doesn't look very cystic, it could be an inflamed pore, minor infection (minor staph or other), or your body trying to dump garbage through your skin.
The diet I recommended for a week should aid in elimination of the skin problem. It will burden your internal organs less and hopefully allow your skin to heal. The skin is the backup elimination organ usually and you'll have acne-like lesions popping up in random areas around your body, especially the face due to the nature of the skin there.