Hi. DGS 5 diagnosed tonight with chicken pox. DM 83 has surgery for metastatic cancer in 3 weeks. She's currently having immunotherapy. Put a call into her GP but haven't heard back yet whether I can still see her given I saw DGS today and her immune system will be lowered. Looking for advice please whether an adult can catch shingles from chicken pox if they had chicken pox as a child. Many thanks.