I rarely put any ND in their water. I wipe the dropper with my finger, then transfer it to the side of their bill. Then drip some clean water from my finger, and it will wash the ND down with it.
They are a few days old now, right? You could even put Goop I in a sink of warm water and let her rinse really well. Just a few inches deep (enough to float but still touch the floor) and just for a few minutes. 5 or so is usually enough for a first swim. Watch for the feathers to look soaked, you don't want her to get water logged. Then towel dry her really well with a soft terry cloth, and as you towel her off, rub her head and face. Don't be afraid, you won't break her! lol I think you'll get most of the goop off, and she will like being snuggled and rubbed in a warm towel.
A short swim will also let you see if she's using her legs ok, and its good exercise. Just be sure to dry her off good, and warm her right back up under her heat lamp. Toss in a couple specks of food and see if she goes for them... that could tell you that she can see well too.
These 2 are just over a week old, they are up to about 30 minutes each evening. I float a wash cloth, for them to rest on, if they get tired.

(excuse my dirty-looking laundry sink lol)