I have used this products, for curing allergy in starting spring, but this time shopped at different store , the product seem not working anymore, the shoppers and drug muts located around steeles & warden in Markham in Ontario,i waited the drug preparing for one hour, definitely, As I finished massage therapy in that area for just one hour, when I finished the massage therapy and returned to the store, they asked me to wait for another 20 minutes, the short lady, an Asian woman talked to me and go backwards to do sth, the drugs used for curing allergy in eyes should haved been ready by then, but it didn't,the fluid (drug) totally not working as I used for four times already, I seriously doubt the employee doing sth with drugs