Allergy or oral thrush?

[KatyMac]

5 days post op - history of odd/unusual allergies incl drug allergies

Lots of new meds/processes etc

So after days of sore throat which I put down to the breathing tube, yesterday I developed what look like chicken pox on my throat and a yellowcoating over a very red/sore tongue

I went for oral thursh but I am starting to wonder

What does anyone think?

Bump - I rang the gp and I am waiting to hear from the pharmacist

Or a really, really bad throat infection