This brings to mind a good story I heard in Pharmacy School. A guy was prescribed a suppository for his hemorhoids. The Pharmacist forgot to tell him how to use them. A few days later the guy came back into the drugstore and the Pharmacist asked him how the suppositories were working for him. The guy looked at the Pharmacist and said "For all the good they have done I may as well have shoved them up my a__! The Pharmacy professor that I had that told this story said to never ASSUME that the patient knows how to use anything. Always label it properly AND explain it properly. A good Pharmacist will explain everything to you. If he or she doesn't, go to another Drugstore.