Daycare viruses - I’m at my breaking point

We started daycare in June and we’ve had EVERYTHING. HFM, RSV, Covid, norovirus, pinkeye, croup, ear infection, ear infection, ear infection. LO gets it, and then gives it to me who takes much longer to recover. How do you prevent or keep illness under control with daycare. I knew the first 6 months would be rocky. We bathe immediately after school, take vitamin c, eat nutritiously and wash our hands. But omg the constant sickness for both of us is going to break me.