Forget Nyquil ... Bad Bunny is apparently the perfect cure for the flu -- 'cause after he brought LeBron James on-stage Sunday -- the Lakers star looked magically cured!!!
LBJ has been battling a bad cold this past week ... and he was feeling so crappy over the weekend, he missed L.A.'s game against the Thunder on Saturday.
But on Sunday, clearly all the guy needed was some Puerto Rican Latin trap and reggaeton to feel better ... 'cause when Bad Bunny brought him on-stage at Calibash at Staples Center, LBJ raged his face off!