Using treated milk in soap?

Hi
I sometimes have to treat one of my girls with wormers during lactation, if I have babies I feed it to them if not I dump it, however I'm wondering wether or not it would be safe to use in soap? I'd rather use it then dump it (and not having to milk into a separate bucket……..heaven!)! But I don't want to irritate anyone’s skin either :/
Vanessa
:help

 

Thanks! I thought that the lye would nuke it but I wasn't sure.............
Vanessa