unwell for about 10 days sore throat, cough, pain under right rib, spots on hands and feet?

I have been feeling unwell for about 10 days now. Sore throat, cough, pain under right rib and then spots appeared on my hands and now my feet. They are becoming itchy and don’t seem to be going just more appearing. Not sure if i should see a doctor or just wait until they disappear.
Many thanks,
age 25

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