Hello, and I hope I can help you today. Your intuition most likely correct in that your symptoms are probably due to irritation from the condom. There are a couple of possibilities of what exactly is causing the irritation- you could be allergic to latex, which is a very common skin sensitivity, or also the spermicide in the condom can kill the healthy bacteria in the vagina, causing you to develop a vaginal yeast infection. I think your best course of action is to buy two creams in the drugstore: one that is 1% Hydrocortisone (used to treat itching on all areas of the body) and another that is antifungal and designed to treat vaginal yeast infections (like Monistat or equivalent) that is a 7-day cream in a large tube. Try applying the hydrocortisone cream first externally twice daily to see if that helps. It may burn when you first apply it- this is normal if your skin is irritated. If that does not help after a few days, try the yeast infection cream, applying it on the itchy areas outside the vagina. If you develop thick white discharge and/or have a lot of redness and swelling in and around the vagina, it is more likely a yeast infection. To avoid this in the future, you may want to buy condoms that are non-latex and have a non-spermicidal lubricant. Many condom brands offer non-latex versions because skin sensitivity is very common. In addition, I recommend you use an additional water-based lubricant (put some on yourself in the opening before penetration) as the lubricant on the condom itself can dry out quickly, and this will help you avoid being chafed. I also recommend you refrain from intercourse again until your symptoms improve. I hope i was able to adequately answer your question today and that my advice is helpful. Best wishes, Dr. Brown