On going issues

I was telling my boyfriend last night I think I have a yeast infection... I started feeling very itchy down there and have slight discharge yellow with a little Oder but it's not fishy. I've been working in the heat everyday outside and I know the vagina is already a very moist area so I'm guessing heat and sweat don't go well with it ... he told me it's impossible for me to have so many yeast infection and then said I've had about 30 already which he's being a drama queen I've only had 2 and then 2 bacterial vaginosis.. was just curious if there's something natural I can take to help prevent this ? I can't get Into my gyno anytime soon so not sure what to do any suggestions would be great