I also read not to take Tylenol before getting the vaccine. But I'd already take my morning 2 Tylenol arthritis for the first dose. I waited to take it until after my 2nd dose & told the nurse I had & she was like, 'huh'? Whatever. Didn't seem like she'd either heard of that or I don't know. The 2nd dose was the day I was supposed to inject my Humira, so I asked my Rheumatologist & they said they recommend we just keep on w/ our regular schedule of meds...