
Is the white the discharge or the color of the actual vulvar skin?
Us the actual colour. Though the discharges are also white, thick, irritating and itchy.
Yes I think you have a yeast infection and need to treat it. Look for Canesten yeast/thrush treatment in your pharmacy/chemist. it contains Clotrimazole. It should contain a vaginal pessary which should be placed high in the vagina and also some cream for the vulva. Your partner can use the cream on their penis to try and get rid of any fungal spores there. He may not have any symptoms but can re infect you. If it doesnt clear it then you may need an oral medication which your doctor can prescribe. Did you only use medi soda for the UTI. ? That is often not enough to clear the infection although it may take the stinging away. Did your doctor do any swabs? or urine tests?
Clear up both these problems and you should feel fine.