Cystex is often used as a urinary pain relief medicine for those experiencing discomfort from UTI symptoms. It's designed to alleviate pain and burning sensations, though it's not an antibiotic and won't treat the actual infection. Many people report feeling relief fairly quickly, sometimes within a few hours. However, it's crucial to note that while Cystex can help manage symptoms, seeing a doctor for a proper diagnosis and treatment with antibiotics is necessary if a UTI is confirmed. As for side effects, they can vary, but some people may experience stomach upset. Make sure to read the package instructions and consult with your doctor about any concerns. If you're experiencing severe symptoms or have frequent UTIs, definitely seek medical advice.