Do not take prescription medication if you are not sick. Handing out massive amounts of drugs to otherwise healthy people is just insanity.  Z-packs, especially in the elderly, can lead to C-diff infections by killing everything in the intestinal tract except the C-diff. C-diff can make people really sick with an acute ulcerative colitis which often requires hospitalization. Ask anyone who has had it and they will tell you it is no fun. Antibiotics can also be bad for people already fighting candidiasis. We already are dealing with issues related to antimicrobial resistance due to the overprescribing of antibiotics. Plaquenil, hydroxycholoquine, also comes with side effect  6ec0  s and should not be taken unless needed to treat a existing medical condition. The most common is vision problems and liver. People should not take this medication without bloodwork to monitor liver functions. Both of these meds are not harmless.  Stay away from people if you can and take care of yourself. Common sense and healthy living can go a long way in protecting you from infections. There are some good suggestions on this post that can help with finding alternative ways to stay healthy. That is the best way to stop this.