Pat,
(((((((TONS OF HUGS SENT YOUR WAY)))))))
Pat, this may not appeal to you:) - but I suggest you get on the phone and start calling mainline churches in your area. I know that in my area, several have great community assistance programs - you don't have to be a member of their congregation/parish to qualify. And, the parishioners who engage in these outreaches seem to truly know what help is available in their community from a variety of sources. The 'help' might come in many forms - financial, low or no-cost daycare, food donations, clothing for the kids, etc.
I think it is worth a try. Try the larger churches first, then work your way down.
Also, have you considered contacting a group that provides support/info re epilepsy - I bet there is a 'national support group' - and they might just have info related to drug use among epileptics...I'm just thinking that this is not isolated to only your daughter.