How do you heal a broken rib?

Time. All broken bones heal with time usually. A high calcium diet may help speed things up if you're deficient, but ultimately, time is the only cure.
Time. Time, paind medications, and avoiding the cause of the broken rib (e.g. Contact sports, falls, etc.).
Time. A broken rib will heal on its own. Really it takes about 6-8 weeks but the pain should lessen considerably by then.
Rib fractures . Simple rib fractures are treated conservatively with pain management only.
Certain rib fractures that result in breathing difficulties and / or relentless pain are treated surgically.
I use titanium plates to repair the chest wall. .