No the drops probably won't do much good. Shelf life on those once mixed up is about 10-15 days.
Its not a good idea to use expired meds. They may not work well and may just get the 'bug' to become antibiotic resistant.
Hope this helps you!
__________________
Please press Accept if you find my answer helpful. Want more info? Just reply on your question!
Bonuses for good work are always appreciated!
Thanks for the opportunity to help you!


