your child is not at risk for your herpes because you share a bathroom. everyone in a household should have their own towel, washcloth, toothbrush and razor - many common germs are transmitted through sharing those. http://www.ashastd.org/herpes/herpes_le ... herpes.cfm
has terrific info on oral herpes.
if you've never been tested for herpes before, no way to know when you were infected. it could've been the very first person you had sex with or one of your recent partners. if either of these are still a partner, discuss your test results so they can get tested to know what precautions to take from this point forward.
there is a terrific patient counseling video at www.westoverheights.com
and also the free herpes handbook is there too. if your provider didn't give you the valtrex packet with the video in there, be sure to watch it if you have high speed internet access.