Lindsay Lohan has called a truce in her war with a former worker at the Betty Ford rehab clinic … the woman who sued the actress, claiming Lindsay brutalized her after being ordered to take a breathalyzer test.

TMZ broke the story … the worker — Dawn Holland — claimed she tried to administer the breathalyzer after Lindsay had returned to the rehab clinic one night in late 2010 and appeared intoxicated.

According to Holland, Lindsay recoiled in anger, grabbing Holland’s right wrist … “twisting and pulling it for 8-10 seconds.”

Lindsay acknowledged there was a scuffle — but insisted she was provoked by Holland … and any injuries she may have caused were in self-defense.

The case settled for an undisclosed amount — we’re told Lindsay paid something to make it go away, although we don’t know how much.