Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
The kind of fever
, ulcers and and red spots that you have described suggest that you have viral illness. Such viral illnesses take time of atleast 7 days to heal. You may continue the medicines as of now and take plenty of rest and water and they will heal.
If not then you can get a blood culture
and sensitivity done to rule out any systemic infection.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.