I don't think she does cannonically, I know QUEENMASK on Deviantart has made masked manips of her using Diamond and Pearl screenshots. The only pokemon ladies that I know wore a surgical mask at least once were Misty in Whichever way the wind blows, Jessie in pretty much the first or second episode of the XY series, and Nurse Joy in the Sun/Moon series.

@anonymous_me I'll try watching it

@sarah you can watch on cartoon network Saturday's starting at 9pm-3am has really good anime shows on what's called toonami ALSO Netflix and contour