My boy is 3y 10m old. Today he had a cut on his thumb from a  plastic toy he broke. The cut looks same as when we suffer a cut on our fingers from knives while doing kitchen work. There was bleeding, not dripping but on surface which could be wiped and reappeared. Right now bleeding has stopped, the cut is healing. But I'm concerned if I should get him to the doctor for a Tetvac or something similar for his age. Kindly suggest as I'm not aware...