Ibuprofen has been shown to inhibit antibody production, and I believe similar research showed something similar for paracetamol. https://www.ncbi.nlm.nih.gov/p

Ibuprofen has been shown to inhibit antibody production, and I believe similar research showed something similar for paracetamol. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2693360/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2693360/ That said, the discomfort of a 10+ day flu vs slightly reduced immune response, I'd take the medicine any day.