Viral Infections & MS

Hello again, So since its the back to school season, & I meet lots of parents & kids, Ive just got a viral respiratory infection, a rough cough with mucus, flu & some fever. The dr said that the Tysabri im taking suppresses my immunity, so whatever disease I get, I need to take extra medicine, & extra care. Currently im on paracetamol only, cough med, liquids & rest, & if it becomes worse she’ll consider antibiotics. Question is, what to do as a precaution with the Tysabri to avoid catching up diseases? Like usually people take vitamins, natural home remedies to boost immunity, but apparently my Tysabri suppresses it so….