I cut my hand with a double headed axe on Friday night. Went to the ER, hit an artery, the doc stapled it and then put in about 10 stitches. Followed the instructions to keep it covered, and then uncovered during a shower, putting neosporin on it and recovering it. Seems to be a bit red and puffy now with a little puss oozing out when pressed on. No antibiotics were given. Should I go back in to have it looked at?