Painful blisters in mouth & vagina due to bactrim (sulfamethoxazole and trimethoprim) allergy. ok to put benzocaine cream on outer vag, offers a little relief. what else can i use? help!

Symptomatic relief: is best after discussion with your PCP or doctor. Make sure this is documented in your chart as ALLERGY TO BACTRIM/SULFAS. The symptomatic relief is perhaps the best, like ice chips, no hot, spicy, foods. Keep it bland, hydrating, easy to digest as your entire throat may also be affected down to your gut. Tepid, soothing, nonstinging baths like Aveeno (oatmeal) may be helpful. No chemical shampoos or soaps.