I'm fairly sure my 13 year old daughter has tonsillitis, she said her throat was really sore yesterday and it felt the same as it did six months ago when she had tonsillitis for the first time. She had a headache this morning, isn't eating much, one of her tonsils looked like it's got a good sized ulcer on it and she thinks she's got a cold coming.
Would you try and get her a doctor's appointment tomorrow morning? Looking at advice online they seem to say to leave it a few days. Last time I took her after 4-5 days (just thinking it was a sore throat) and I had the feeling I should have gone earlier.