i know you have seen those info mercials on t.v about that acne med jessica simpsom uses, but walmart has a kit you can buy called acne free, its a wash, toner, and cream, cost $17, and works, even on adult acne, use it 2xs a day, i f that seems to harsh use the wash 1xs a day, toner 2xs{especially in the summer with sweat and all} and the cream 2xs a day. works like majic, you will notice clearer skin in about 2-3days, but that does not mean he will never get a break out,
what i found to work best is to use the product for a while say 3 weeks, then give your skin a break for a few weeks, because just like with any product,your body will build up a resistance to it,
make sure he washes his face, and rinses well, most products dont work because soap is still on the skin surface clogging pores, therefore skin creams cannot get in in the pores.
and if he happens to pick, put some pure zinc oxide on 2xs a day and it will heal up like new in no time.
another thing i found to work, is vitamen E @ C, capsules, poke a hole in one and apply to pimples and zits as often as you remember in a day and watch them suckers disappear!!!
my skin was a nightmare, i work in a greenhouse year round, heat, sweat, humidty,dirt, plays havoc on your skin, but these things work like a charm.