Sometimes hernias can be repaired through special exercises that you could do, that will improve your muscles in the area of the hernia, and the hernia will resolve itself. You might need to consult a specialist for those exact exercises - your doctor should be able to refer you.
Sometimes hernia can be repaired by some simple excercises which will tighten the muscles and the hernia will come down gradually but for these you have to consult a doctor for the sort of excercises to be done.