Kathy, She will be very contagious for 24 hours once the medicine has been delivered. Make sure you wash your hands good after instilling the drops and have her wash her hands often. Pink eye can be rather itchy, so she'll probably want to itch it a lot. If you see her itch her eye, immediately have her wash her hands. If not, she can transfer it to her other eye or to other people she is around.
I would keep a close eye (sorry for the pun!
) on the rest of the family. Usually when one person gets it, almost everyone gets it. You should have plenty of drops left after she is finished. Keep them in a cool dark place and they should keep for at least a year. If another person in your household starts the same symptoms you could use those drops on them, but it is best to check with the doctor first. OH...those drops tend to burn a bit when you put them. So, she may panic a bit since it hurts
Also, wait a good 30 seconds before putting in another drop if you have to put 2 drops at one time.
Hope this might help you a bit! Hope she's feeling better soon and also hope that no one else gets pink eye in your house!