What should I do if topical medications don't work for vulvar itching?

Patient's question:

Vaginal itching, as if there are small insects, I have used the medicine prescribed by the hospital and the topical medicine. It's much better than before, but it's still itchy, using it to wash several times

Doctor's answer:

Perform a routine careful examination to identify the type of vaginitis, and then adjust the medication based on the examination results. If the symptoms significantly improve after medication, it is effective, and you should continue taking the medication. You can use povidone-iodine to eliminate bacteria and apply some clotrimazole ointment.
Patients experiencing external genital itching should actively undergo examination and treatment without avoiding medical visits. If the itching does not improve after prolonged treatment, it is important to promptly change the treatment plan.