Child was brought home sick. Any advice/suggestions?

I work part time during the day and babysit in the afternoons. I had baby and dog. Mom picks up toddler (3f) from school. She has a cough. Mom checked temp, she’s at 100. I just got over being sick and absolutely cannot afford to miss more work. I legit was out for 3 days straight 2 weeks ago at my part time job. I’ve been washing my hands every 20 minutes. Might get some Emergen-C packets on Amazon tonight to be delivered tomorrow. Any other tips?