Don’t let allergies. Get back on track with Quercertain tablets. This dietary supplement helps to reduce the symptoms of mild allergies and relieve inflammation. It also acts as an antioxidant to reduce the formation of free radicals in the body. Quercertain also includes bromelain, which can act as an analgesic to help relieve pain. Take one tablet, three times a day to fight the effects of cold, flu and allergies.