I would like to know the adverse reactions to the shingles vaccine. I am particularly concerned about a friend who had an adverse reaction to the shingles shot in Oct, or early Nov 2015 i.e. swelling and pain in her arm and headache, was put on antibiotics and had a very severe reaction to the antibiotic. Now at the age of 65, for the first time in her life she is experiencing some hallucinations and delusions. I am wondering if there might be a relationship here. I am a clinical social worker and family therapist and am familiar with recent studies showing that some people develop psychotic symptoms from an infection or inflammation and that the symptoms are quickly relieved with a course of antibiotics. Thank you for your help.