Here's an old one I really like.

John came down with a very painful inflamation of his penis after a long weekend in the Hong Kong. He immediately went to a urinologist who told him he had caught a very rare asian venerial disease. "I am sorry," he said, " but there is no known cure. The only thing we can do is cut it off." John, scared to death asked if there was anything at all he could do. "well," he said, "there is a really good Asian Naturopathic Doctor down the street that might be able to help. Since he is from the area and deals with unconventional methods, maybe he can come something else." John immediately makes an appointment and visits the Asian Doctor, Dr. Huen. The Dr. Heun looks him over and says, "you have caught a very bad case of Hong Kong V. D. Have you visited your normal doctor yet? I bet they told you they would have to cut it off, didn't they?"
" Yes, he did!" John replied.
" oh those stupid american doctors." Dr. Huen laughed. "All they want to do is chop, chop, chop... Look, "he says, " all you have to do is wait three weeks. It will drop off all by itself."