Infant Viral Infection What Causes Fever And Red Bumps?

What causes fever and red bumps? - infant viral infection

I am a young adult, and I have symptoms that the baby http://www.kidshealth.org/parent/infecti roseola viral infection ...
I was with a high fever, fatigue, and little red bumps (not blisters form, they are hot) on the inner arms, back, legs and neck and stomach.
I have not eaten anything new or taking any new medicine, so it is probably not an allergic reaction.
Before making the symptoms, a walk for some miles in 85 degrees in the shade (which is several miles in hot weather can last, never had) a heatstroke.
Well hydrated.
When I am with fever, the bumps are red and hot.
One of my hands (both sides) is the palm area swollen, hot and red. In contrast to the rash.
A few days ago, I reached through a messenger, and then wrapped around the vena region.
No cough, sore throat, runny nose.
They are not sexually active.

All proposals will appreciate the possible cause. Thank you.