Hi hun!
Thrush, for me, can get quite nasty and debilitating. And, for me again, can often be followed quickly by a UTI, generally because i'm so 'uncomfortable down there' and out off my wee-wee's. If thrush gets really it needs a GP's attention.

WHOOPS! Just realised you said natural! I would look more into garlic or natural yoghurt. Otherwise public hospy is free.
Hope you feel better soon love xx