You've been through a lot, no doubt, and the loss of your lashes certainly impacts your feelings of femininity. If you have no problems with eye health you should have no problem with Latisse. Depending on how long you were on chemo and the impact it may have made on your body's ability to grow hair, you should see some results in the typical 16 week cycle - and potentially much earlier. The only way it would not work is if your hair follicles for your lashes were damaged to the point of permanent inactivity, but that is unlikely.
There WAS a very unique offer through Make a Wish and Latisse that gave you an opportunity to donate to Make a Wish and receive a trial certificate. I'm not sure it's on still, but may be worth checking. Go to the Latisse site for details.
I'm rooting for a fast response!