I would try to put the comb back soon, either tie it up with string or rubber bands. Yesterday I caught a swarm, was putting them on drawn comb. On one of the frames the comb fell out, I got 3 rubber band and put it back up. Good luck to you and your bees. I just give it a lite brush and go ahead. Have which ever you would want to use, string or rubber bands,etc ready. Open the hive and fix comb there and put it back in.