If you're having acne issues and don't have a specific medication handy, you might consider breaking open a standard ibuprofen liquid gel capsule and gently rubbing the liquid onto the affected area.
The Beauty & Style section at the iVillage weblog shares that this tip works well when you notice a pimple rearing its ugly head away from home. Acme.org, the largest community dedicated to acne relief, has noted that several users have reported success using this method. Several users at Acme.org have noticed that it reduces the redness and irritation of an acne breakout almost immediately and that Japan has an ibuprofen gel specifically for acne relief.
This seems like a good reason to keep a few packets of gel capsules in your go-bag or purse.
MacGuyver Beauty: 13 Crazy D.I.Y. Ideas [iVillage]