I do bjj (just started) and got really badly kneed to the left thigh? Anyone with experience please help?

so i was grappling and was stubborn in letting my full gaurd go so when the guy slipped my gaurd i tried to bring my leg back... resulting in the knee. its the next day and i have training tommorrow whats the quickest solution
I do bjj (just started) and got really badly kneed to the left thigh? Anyone with experience please help?
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