Hello dear Understand your concern If you have used condom earlier and that time no itching then cahnce of allergy is less. It could be a urethritis, bacterial vaginosis. I would suggest to undergo urine report and vaginal swan test to rule out above causes by consulting the gynecologist. Doctor will give following advises: Maintain hygiene before and after sex. Tablet septran plus nitozoilum syrup cital for urethritis. Tablet metronidazole for the bacterial vaginosis. Vaginal suppository of alctobacillus. Wash vagina with warm salted water and then apply apple cidar vinegar. If itching is severe then you can apply ointment of benadryl and mild steroid. Wear pure cotton loose under garment and drink plenty of water, avoid excessive sweet. Avoid sex till you get better. Hope this may help you Contact HCM for further health query Best regards Dr. Sagar