What is the best recomendation for shin splints which have lasted over two months?

Shin pain: The pain could be several things. The most severe would be a stress fracture. This is usually manifested by very localized tenderness, as opposed to other causes which would be more generalized pain. "shin splints" and other inflammatory issues such as periostitis and medial distal tibial stress syndrome can be just as painful, but are less serious as they generally do not lead to more severe complications. If left untreated, a stress fracture in the tibia can progress to a full blown fracture. The best thing for you to do is have an xray and an evaluation from an orthopedic surgeon. Not all stress fractures will show up on an initial xray, and sometimes bone scans or mris are needed if indicated. Regardless of the diagnosis, cross training with lower impact exercise is suggested (swimming, aqua jogging, biking, elliptical, etc.).