What can you do to treat an abdominal hernia?

Usually by surgery: If possible. If for some reason someone is an unacceptable surgical or anesthetic risk, remedial treatment with external supports such as binders and trusses are possible, but not very effective. So, it depends, on the size of the hernia and the individual patient. Have a surgeon take a look at it.

Operate: The only way to definitively "cure" or repair a hernia is a surgical procedure. You could limit activity that causes symptoms, or use a variety of available support garments to help alleviate discomfort, but those things won't actually repair the problem. Hope this helps!