Almost every single one of these Chinese Flu "rules" has been debunked, but as on 3/29/21, they're still being posted on the internet as true

Health Digest: Things You Should Never Do Between COVID-19 Doses. It’s mostly a rehash and repetition of now-discredited “expert” advice from last year, so it provides an interesting look back at what was being touted as “science” during the past 12 months, but some of it is still being pushed by Monkey Fauci and our CDC to this day.