it should be fine assuming she doesn't fall asleep with one in her mouth and aspirates it.
can you get sick if you just keep using cough drops for the hell of it as if a person is addicted to it! or has a probem. i have a friend that i am concerned about she keeps taking cough drops right and left for no reason at all shes also 80 yrs old at some points she smells like hall's the cough drop you can smell it miles away. is this good or bad and why?