I have an extremely sore throat on one side. right tonsil is very swollen with potruding dark red pimple like spot. this came out of nowhere.

Throat infection: The symptoms that you have described sound like your tonsil could be infected. Although an infection could be caused by a virus, it may be due to a bacterial infection. You should see a doctor and have your throat tested for Strep. A doctor can also determine if there is an abscess in your tonsil. Antibiotics and possible drainage of an abscess would be warranted in that case.