since wednesday i have had little clusters (of 10) small red spots, like freckles, under the skin. But today i have a large cluster with much redder spots and painful which is on my knee it has a little torn graze like skin on it, i haven't bumped or grazed it or scratched it. The only thing i have done today is horse ride.
Here some pics of my knee.
I hope u can help, im getting a little worried because i havent done anything to bring this on.