Hi Amyfoot,
Some women experience these symptoms just as you're describing. There are a few things you can consider. First, have your infections been verified as bacterial infections? Occasionally, the urethra can become irritated from intercourse and cause symptoms mimicking a urinary tract infection without actually having a bacterial cause (symptoms including
pain and burning).
Women who do get bacterial infections following intercourse and have not found relief with the treatments you have tried can sometimes find relief by taking a dose of an
antibiotic following intercourse or taking a daily low dose
antibiotic as a preventative treatment to keep bacteria from growing. If you are having bacterial UTI's you may want to talk with your doctor about trying something like this.
I am not aware of whether or not planned parenthood can provide these services. Your gynecologist (or primary care doctor) can help you determine if this type of treatment will help you. Often, if you need, there are clinics that can see patients on a free or reduced fee basis. Your local health department can help with this.
Also, if there is any possibility of an STD I would recommend you be tested for these.
Best wishes.
Advice and opinions given are based on the information provided and must not be used as an official medical recommendation. The limitations of the internet prevent an appropriate evaluation. Always consult your doctor if there is concern.