Hello and welcome to HCM
As per your description of symptoms, I think it is a normal
cough, you can try following things to prevent UTI and improve your condition:
1) Drink plenty of water to relieve burning and soothe your throat, as you are already doing. you can drink little luke warm or normal water.
2)Take 2-4 mashed leaves of holy basil and mix it with half tsp of honey and take it every morning. you can take only mashed leaves with plain water also. honey just to soothe your throat but little.
3)Drink unsweetened craneberry juice to prevent UTI.
4)Avoid spicy,
cold, outside food and caffeine drinks.
5) Take bland, light and soft foods. Use lemon in vegetables and dals or any dish. it will help in improving your immunity.
6) Do gargles minimum 2- 3 times and take rest.
But still if the symptoms persists, get your urine test (routine + culture) done.
Take your early morning midstream urine sample.
hope this will help
take care