Boudreaux's Butt Paste Diaper Rash Ointment | Original | 16 Oz https://www.amazon.com/dp/B0009RF8G0/ref=cm_sw_r_cp_apa_i_zuGWCbFSNB2KQ
Baby Powder is your friend - and http://www.amazon.com/Boudreauxs-Butt-Paste-oz-Jar/dp/B0009RF8G0/ref=sr_1_1?ie=UTF8&qid=1423240028&sr=8-1&keywords=butt+paste
I learned about the stuff from competitive bikers - guys with legs like: http://media.tumblr.com/a6b67800f911a57fcd4c898ecd936a16/tumblr_inline_mh71zhMacO1rccejp.jpg
Happened to me too - never had so many issues till the legs got moderately big - they are not even huge yet.