Your friend probably has an allergic or contact Dermatitis
. She would benefit from anti-histamines like Zyrtec
10 mg at night for a few days. On the red bumps, she may also apply calamine
lotion to soothen it twice daily. She should bath in lukewarm water. If the lesion does not subside in a week’s time, please take her to the Dermatologist
Hope this helps you.