This might work, can’t comment if its the best way, i’ve seen mention of timers but i’ve not used them yet.
place that after applying damage.
that will set “candamage?” to false for 3 seconds (timeline float track with two points, point 1: time=0, value=0 point 2: time=3, value=1) then just put a check before applying damage to see if candamage is set to true.