In the current scenario, you should get yourself examined by a specialist to localize the cause of the itch and the sore. Vaginal swab as well as a cervical smear would be needed along with blood counts and urinalysis
. Self medication
for a yeast infection is usually insufficient and often leads to recurrences and it is also likely that repeated scratching can lead to sores on the vulva
. You would need prolonged treatment with regular prophylaxis for at least 3 months to prevent relapse. Your husband may also need to be treated if necessary. Hope this helps.