sleep training

so, I have to get my wisdom teeth out on Friday. My 1 year old is still being rocked and nursed to sleep, terrible I know. I know I can't do it after my surgery so I'm hoping if I start sleep training her tonight she will be mostly good by Friday. I plan on using the ferber method, aka crying but I check on her every few minutes at increasing intervals (no more than 15 mins at a time) anyways, my daughter is getting over a cold and I'm not sure if I should start tonight but if I don't I will have to get up with her after my surgery for feedings. (I'm weaning night feedings but the method I'm using takes 6 nights) she hasn't had a fever in 2 days and is acting 100% herself again. just a bit of a runny nose still. is it okay to start tonight or do I have to wait for her nose to stop running?