There's no doubt about the fact that you have already shaved to perfection. One final step remains. First you need an aftershave lotion to tackle the irritation. Then an aftershave balm to soothe the skin. And afterwards you might try an eau de cologne (in some instances literally from Cologne). Word of warning: strangers might stop you when you walk down the streets, even more than they usually do.
If you were unfortunate enough to have obtained a nick, try alum to stop the bleeding.