The rash improved a bit, but began prickling in
the heat/
sun the next day,
and spread to my thighs.
The next day, it appeared on my knees
and feet, although the rash on my feet was sort of a pinkish blotch (about 2" across), with a redder outline.
I went to a different doctor, who took a look at my throat (now severely inflamed/infected, tonsils *****), swollen lymph nodes, and rash, and told me that I had scarlet fever. He didn't perform any tests, but prescribed amoxicillin.