Having tasted the pavement myself last week I can sympathize. Get well soon.

Be sure to rinse that road rash thoroughly at least once a day with hydrogen peroxide then slather it with plenty of Neosporin, Polysporin or store brand triple antibiotic ointment and cover with gauze and tape (mainly to keep the ointment off your clothes). The ointment will protect against infection, speed healing and reduce scarring.