The most ideal time to collect your stool sample is when symptoms are at their worst. For example, if you find that symptoms increase near the start of your menstrual cycle, you should plan to collect your sample(s) at that time.  As a reminder, the use of antifungals, antibiotics and proton pump inhibitors should be discontinued at least 2 weeks before sample collection for accurate results. Consult your trusted medical provider BEFORE discontinuing any prescribed medications.