Customer (name blocked for privacy),
Your grand-daughter may have an especially severe for of acne known as hiradenitis suppurativa, in which large painful acne-like abscesses form on the face, groin, and armpits. This condition is very difficult to treat, and usually these patients require antibiotics and surgical drainage of some of the lesions.
The following website has some good information for the two of you to read before heading back to the doctor:
http://www.mayoclinic.com/health/hidradenitis-suppurativa/DS00818
Thanks and good luck!
-Dr. Scott W, MD
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