Hello and welcome to HCM. Thank you for your query. Let me first help you with some basic information on diagnosis and treatment of a UTI (urinary tract infection). For initial suspicion of a UTI, we take into consideration the symptoms (burning while urinating, fever, chills, frequent urination, increased urge to pass urine but reduced quantity of urine passed, etc.). Please note that not all symptoms need to be present to clinically suspect a UTI. Once a clinical suspicion has been raised, we follow this up with a urine analysis, which provides us with further information on a UTI, and on most occasions provides a confirmation as well. This investigation can/should also be followed up by a urine culture examination. The benefits of this investigation are that it provides a confirmation on the presence of the infection; details on the infection causing organism and the most suitable antibiotic that can be used to treat the condition. This will ensure proper and quick relief of the UTI. Thus I request you to kindly discuss the same, and request for a urine culture examination, if it has not already been conducted. Next coming to the boil/pimple on your nipple, this could possibly be either acne, montgomery glands (seen in women above 30 years of age normal occurrence); or a yeast infection. Please visit your doctor who will surely help you with this. In the meantime, please keep the area clean and apply an over-the-counter medication if accessible which contains benzoyl peroxide or salicylic acid. A yeast infection will require anti-fungal creams/ointments, this can be accessible only with a prescription, thus please do visit your doctor. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.