Iron tablets help only if ur periods are delayed because of anaemia. Otherwise there is no correlation between iron supplements n periods. For uti follow this
Do the following--
1. you maintain high grade of personal hygiene.
2. Do change your undergarments at least 2 times a day
3. Wear cotton underclothes.
4. Stay hydrated. Drink plenty of fluids.
5. Keep the area dry.
For more details you can consult me.