As I was reading this, Tony looked over my shoulder and said something very interesting. Has anyone considered that the zit may, in fact, be a spider bite? Depending on the spider, this could be a problem, if this in fact should be the source.
Try giving him lots of colloidal silver. Normally, I would recommend Curezone Sponsor Utopia Silver http://www.utopiasilver.com, but because of the urgent nature, go to a health food store and use what they have. You may want to order colloidal silver from Utopia Silver, as theirs is pure colloidal silver of the highest quality. Call them to receive the first time customer special offer and after that you can use Code LR001 for a 15% discount. If there should be any type of infection, this should get rid of it. You can take as much as you want and has no side effects, as opposed to antibiotics. Also, colloidal silver kills germs that are resistant to antibiotics.
I hope you brother feels better and I wish you the very best.