Welcome to the forum. The burning sensation in your vagina is suggestive that infection is still persisting. Sometimes UTI infections take 2-3 weeks to get cured. You should have a repeat C/S Urine done, R/E Urine, VDRL
to test the accuracy of the test.
Take care of your hygiene and sanitation. Use cotton wears, treat them with antiseptics like savlon/dettol
when you send them for a wash. Avoid sex till you are not fine. Drink plenty of water ( 1-2 litres), it will help you feel better.
, alkacitran syrup taken with water can help you get better. Before taking any mediation consult your treating doctor. Get treated well, neglect may lead to pelvic inflammatory disease
infections. Take care.