Instruct: Classify Amazon reviews into positive or negative sentiment
Query: no outer package so no expiration date in view

I am in MOSQUITO CENTRAL...with West Nile Virus at the peak of its season & when I applied this, I was bitten at least 20 times in 10 minutes.I looked for a expiration date but there was not one.I am sure this is expired or it would have worked.This was a waste of money & now I have to pray those bites are not from infected mosquitos.West Nile is DEADLY!!!!