If your girl is licking her stuff and not her butt, I would suggest helping her clean which will allow you to inspect.
When I would bathe my girl basenji, I would have her all wrapped up and drying off in my lap. I would use a warm wash cloth and wipe around her stuff down there. She always had dirt caked to her area and I always thought it was better to help her clean it than her get an infection.
I never had a problem doing this stuff with my dogs because I consider myself the mom. No one else is going to do it. Mom dogs will lick the puppy butts to encourage going to the bathroom etc.
My girl never fussed about it.
Anal gland expression is cheap and the best money ever spent. Make sure you ask the vet to do it and not a tech or groomer. Ask for the inside expression not the external expression. They are going to charge you either way. Once every 6 months is normal. Cairo started expressing his anal glands right around 5 months. Caesar is a repeat offender and goes every month. I had Cairo's expressed while we were there. The vet said Caesar was olives and Cairo was lima beans.
Once you have cleaned her (no soap, just warm water) and expressed those glands…see if it continues....it could be a UTI, a bug bite from sitting or a scratched anus from scooting if you see that.....