Reaction to Athlete's Foot Treatment?

I tried treating athlete's feet w tolnaftate and foot powder. When that didn't help I soaked them in apple cider vinegar and used the spray at nigh so I could sleep.
My foot has turned red and swollen. Only Benadryl gives me relief. There is a blister in between my toes now. What should I use on them to treat this (reaction to the vinegar or the combination?) and the athlete's foot?
Thank you.

[Yena H Do, DPM]

blistering is a sign that the infection is worsening.  soak them in domeboro solution (packs can be purchased at drug stores).
you may need an oral antifungal to treat your worsening condition.  Lamisil pills can help..however your doctor needs to check your liver to make sure it is ok.