This is Dr. Christian. How old is your dog and is she spayed? Is she acting sick such as vomiting, lack of appetite or lethargy? Is she on any medications?
she is a year old not sick or lethargic. not on any kind of meds. she is a chihuahua
It is fairly common. The area stays fairly wet and that can lead to infection. If there is a lot of hair around the vulva that can also keep the area wet. There are some dogs that have poor conformation of the vulva so that the area does not dry out. In this case you are probably looking at an office visit and some antibiotics. The cost shouldn't be too bad. You can try the neosporin for a few days and see how it goes as long as she is acting normal though.