Can tea tree oil cause any negative affects to the urethra i used a home remedy for yeast infection and for a while after i've been experiencing frequent urination what can i take to get rid of it?

Allergy? UTI? STD?: TTO can be very irritating and should not be used in the genital area. There is no proof of effectiveness for many things listed in various online resources, including yeast infections. And yes, it can irritate the urethra. But impossible to know if that's the only problem or if you now have a UTI or STD. See a doctor. See https://www.webmd.com/vitamins/ai/ingredientmono-113/tea-tree-oil