36 yo niece, pain and tingling in corner of mouth started yesterday while camping, progressed to pain in mouth and swollen lips. No throat swelling or SOB. No lesions in mouth or lips. Did not seem to respond to Benedryl 25mg taken yesterday.This morning same sx s but now mouth is burning, worse if she eats or talks, and clef between top lip and nose burns, lips are more swollen and gums are starting to swell, still no throat swelling or breathing issues. Took Claritin 30min ago without noticeable response but sx s have not progressed. Taking ibuprofen for pain. She is 1.5hr away from medical care, otherwise healthy. Any recommendations?