DS 2.5 had a high temperature on Tuesday. Covid test came back negative. He then had a sickness bug on Wednesday which he recovered from quickly but has had a snotty nose and a bit of a cough ever since. Today he’s acting fine in himself but has a temp of 39.5. It's come down to 38.5 with Calpol. Any advice on what we should do? Does he need another Covid test?