Rivermom, I hope you chose to call the doctor, ithe lesions could be herpes virus, or a different stain of strep that doesn't come up on a fast-test. Did the doctor want to see him?
The C ocksakie Virus, ( hand foot and mouth disease) is very contagious, and your poor little guy, should be "sequestered" from everyone else if possible (absolutely from pregnant folks) ..... Use paper/plastic utensles.. his own linen, seperate bathing, etc...
The blisters are very painful, (poor baby) But the real danger is if they interfere with eating/drinking, the child can became dangerously dehydrated, requiring intravenous fluind. That's what you have to watch for.
Signs of severe dehydration can include, amongst other things, parched lips and markedly decreased urination. As the seriousness progresses, you will notice loose"tenting" skin, absence of tears, a sunken apearence to eyes, and in critical stages listlesness,, and coma.
When my youngest was 2 she had the worst case of C ocksakie virus the pediatritian had ever seen. She was literally covered in sores, and was being given codine for pain. She survived with no memory of the ordeal. I on the other hand will never forget it..
Ain't that always the case??
I hope your little guy is doing OK..
Val