Hello As you stated that your friend is having herpes ( shingles ) ,so diagnosis is established and need not to worry . I only prescribe acyclovir 400 -800 mg 5 times in day for 7 days with ointment of same name . Within next 7-1 0 day your friend will recover . This is contagious ,so don t share her towels or clothes till complete cure. If possible get in blood examination for type of virus . Since this is a prescription , so please consult a doctor and get the prescription. Good luck. When she starts getting relief , the pimples like bumps will start turn into black color ( like a head of pin in the center of bump or pimple or blister). Good luck.