My mom has a bad case of shingles. It's all over her back, chest and right leg. It started out as just extreme pain in her right leg and a few days ago and Dr said its sciatica. Yesterday, she developed huge red welts all over back, chest and leg. She went to a walk in clinic today and the dr there said its shingles and gave her antibiotics. I do not want her to end up with nerve damage and I want to heal as quickly as possible. What can she do or take to help his heal?