How Can Chronic Paronychia On The Thumbs Be Treated?

I have a chronic paronychia condition in both of my thumbs, and to a lesser degree in my fingers. I recently let a metal nail file slip and it travelled the length of my left middle finger between the nail and the adjacent fold of skin. The area is now red, swollen, warm to the touch and painful to touch and sometimes painful regardless of touch. I plan to see my dermatologist when Irma passes through, but in the meantime, do you have suggestions for treatment? Anti fungal cream? Antibacterial cream? Oxistat? Use warm compress or soak in hot water? I guess I mainly want to know if you think the symptoms would warrant a prescription sooner than later? I continue to be confused as to whether this is a fungus or bacteria issue. Thank you. Tom Mozley