Vaginal irritation and itching. 8 aug.

Hi, I'm 42 and have had itching and irritation around the vaginal are. Mostly outside and a bit on the inside. I had bacteria in urine but nothing in culture 2 weeks back.  Took antibiotics for 3 days and uriliser and then was fine.  There was no itching etc then.  Now, after 2 weeks,  the  entire area feels hot to touch and there is itching on and off. I gave blood and urine tests 2 days back and all is normal.i don't have irritation while peeing or any uti symptoms.i don't have an infection or bacteria or sugar. My pee is dark yellow sometimes and with lots of water turns lighter through the day. I'm not sexually active. Please let me know what I can do and if this is heat related or something else. I don't have discharge or anything abnormal and my period is on time. LMP was 8 Aug. Thank you in advance.