I fell in the dirty river in January, hurt my right arm, it had lesions and was infected. and swollen. Doctor cultured it , grew nothing. it seemed to get better for a while, then developed bursitis, has been drained twice, have had cortisone shot, and then kenalog shot, kept arm wrapped for 3 to 4 weeks after 2nd draining, now its filling up with fluid again and is bright red again, looks infected, like I m right back where I started. What should I do now?