Anyone ever chip an elbow?

Pretty certain I did my left elbow some time ago. How long does it take to heal? I FINALLY bought an elbow pad because I keep hitting it. I REEEALLY want to avoid a cast because I do NOT want desk or admin work for 4-6 weeks at the Fire Dept. I can easily lift stuff and straighten my arm. It only hurts if I mash or hit it or press down on something.