Yes. For injuries 3 or less days, I will leave them 1 day injury after healing. For injuries more than 4 days, I will choose not healing them, or fully healing them. If I save 1 or 2 red packs for not healing the last day, his condition is bad upon recovery.
Another point to consider is the time of injury. If the player suffered injury near the end of system day, he will recover for 1 day soon. So I will tend to heal one less day. For the same reason, if possible, I arrange training or friendly matches closer to system day end.