Hi Sdocquir! In that instance, you would continue to play with 2 cards.
Under the standard rules, you don’t “draw back up” once you’ve taken damage; it unnecessarily lengthens the game.
However, if you like having more cards in your hand, you can play with alternate rules. Instead of discarding when you take damage, track successful strikes with a point system. First person to 3 points wins (or reskin the points as HP or Hearts or whatever for your setting).
Hope that helps, and let me know how it goes!