I do agree that a visit to a dermatologist is the best course of action. Once your system is already on the alert, you could easily become sensitized to over-the-counter treatments as well.
The MD we first visited thought True Love had a fungal infection and prescribed strong meds accordingly. The dermatologist recognized it as a sensitivity brought on by extreme dryness. Her effective treatment was much less invasive and did the trick.
You'd be better off with the specialist! I'm sorry you're dealing with this, my friend. It is no fun at all!