Any teeth? And what are you doing to care for them?

My LO has his bottom front two teeth poking through! He is 5 months and 1 week! It is much earlier than I anticipated him getting them and I'm not exactly sure what we should be doing as far as hygiene now that he has teeth. What are you all doing for your LO with teeth? Do you use the little finger toothbrushes or what do you suggest?