I’ve tried many different lotions to use on my head after a do-it-yourself shave. Right now I’m using Neutrogena’s “Razor Defense Post Shave Lotion for Men”. It smells good and works pretty well.

http://www.neutrogena.com/econsumer/ntg/productdetail.browse?segment=men&catId=1&subCatId=4&productId=140&target=/products/face/razor-defense-post-shave-lotion.jsp