Hello there,
You need detailed investigations as you are case of recurrent UTI like
sugar,culture/sensitivity,USG / screening for Genital tract infection etc and may be antibiotics prophylaxis too .
Next Steps
Consult online .
Health Tips
Pass urine just after intercourse .
Clean with mild soap water from front to back on perineum.
Drink 3 litres of water . Take curd/buttermilk/lemon juice .
You might have cranberries as well .