 [ Symptoms ] can flagyl be used to treat kidney infections [ Disease ] i do not think the 2 ailmants are related glad you got some relief for you rib pain keep doing the peppermint thing now go to the doctor for the urinary issue you have the classic symptoms of a urinary tract infection only antibiotics can help with that you do not need to go to the er unless it is your only option your regular physician or an urgent care facility can treat that easily you will need to give a urine sample so make sure you drink lots of water before going