My tip for dealing with it when it comes......be ready before it happens(11months for us). Though Ruby did have a "silent heat" at 5-1/2 months. (Hormones with no mess)
Before hand, fit her with boy toddler-sized underwear. Don't mess with any kind of diaper...not doggy or otherwise.
The toddler undies can be altered and better fitted with a few stitches here and there, or snugged up with ties(yarn)
Get them to fit good and slap in a pad. Have fresh pair ready, always, so you are not messing with the pads while under pressure.....
Have spares, because they come off and get destroyed.
Do this ahead of time....maybe you can acclimate her to them, however, if you do it to early, she will out grow the fit.