Yup it's just exudate... a mixture of stuff including leukocytes (white blood cells) hence the white colour.
Rash isn't good. So you did the right thing contacting your physician...
Typically an allergic amoxicillin rash occurs within 48hr, since you say it's not too itchy that's good! (obviously an allergic reaction has the potential to be really bad...) Though with everybody being different it wouldn't be unheard of.
It could be a viral rash- mono - EBV is known to be associated with late non-allergic rashes with amoxicillin. Cytomegalovirus (CMV) is a similar family to EBV.
The rash may be a result rare side effect of ibuprofen, which is why the doctor is telling you to lay off it. As I said acetaminophen (paracetamol) is an alternative - it has both antipyretic and analgesic properties.
Hope that you still feel better tomorrow, though I find the dull ache of recovering from a viral sore throat can take a while to fade 🙁
Did you know that it's not the virus that causes the sore throat? It's the bodies immune response damaging infected cells to get at the virus...
If you google "amoxicillin rash after stopping" you will see I am not the only one, it alsmot like a withdraw effect. Not that I have been in withdraw of anything but when I stopped taking it the next day rash. I stopped taking it since I was finished with the 7days and took all of the,
If I google image "Amox. Rash" I have the same thing in the pictures.
I was tested EBV and it was negative, I did read on wiki(yea I know) that 80-90% of people who have EBV get a rash after amox.
I am getting tested again I guess and tested for the others.
I am not sure what it is, the doctor does not know and I am leaning to change to a more experienced doctor.
I am actually feeling a crap load worse now, sore throat not so much but fever and I feel week. I am not moving much but my rash does ich here and there.
and I am hungry now and my throat does hurt me, I am still breathing normally and no nausea or diarrhea. Just this damn fever and now amox skin rash.
I thought I was getting better today
🙁
Also as far as I know there isnt any treatment for EBV or related its just rest.
My doctor told me to not take Advil unless my fever goes above 100.4 , to guess I limit my intake, I had a low fever for hours and an hour ago it flared to 101.0 so I took some.
I took Tylenol and it felt relief within 30 min but then it wore off in an hour.
I just guess I need to rest and drink as much as I can.