if it's on the inside of the elbow with the palm up, then it's medial epicondylitis, aka golfer's elbow. palm down and it's on top of the elbow, it's lateral aka tennis elbow.
if it's medial, it changes things a tad, but not too much. Much more likely a muscle strain than a chronic NMS dysfunction like lateral epicondylitis.
either way internet diagnosis is sketchy at best, therefor the treatment suggested should be taken with a grain of salt. seeing an expert in person is you best bet. emphasis on expert. your family doc or run of the mill massage therapist doesn't count as an expert.