[Rads]

Hi, sorry to hear that Nym is unwell.
For her chest it sounds like she has a chest infection which will need an antibiotic treatment and probably an anti-inflammatory medication as well. I think Baytril is normally a 2.5% oral solution for Hamsters and that Tablets/capsules are for dogs and cats.
(If things became ultra desperate you could dissolve the contents of one capsule in 125ml of water and then give 0.4ml orally via syringe twice a day but that is by a rough calculation)
As for Nym's eyes have you tried a little saline solution (dissolve table salt in warm water let it cool to use) and use a cotton bud/Qtip to gently clean her stuck shut eyes and hopefully get them opened again.
For hydration if not drinking again Qtip/cotton bud dipped in water and dripped on her mouth or give her cucumber which has a high fluid content if she eats cucumber she will stay well hydrated.
Hope this helps, can't think of much else.