Natural Remedies Uti Dogs

I think my dog adult female is a urinary tract infection …. any natural / herbal remedies?
She will urinate, then moves a little forward and mea more, then does third time. She looks like she is straining or uncomfortable, so that's why I'm thinking it might be the beginning of a urinary tract infection. I called my vet and they told me to get a urine sample. Night I tried countless times to pick up last a sample, but any time I approached her the pin! (She was very abused before we adopted her and I think I come in low and fast is freaking out.) I I know you probably could have on his fastball and it had catheterization but not anybody know any natural / herbal remedies that are safe for dogs? FYI – She is 5, years, spayed, black lab / pit bull weighs about 55 pounds. Thanks!
Take her to the vet, they can get that sample. Your best bet is a dog veterinarian.
