My 15 year old dd has had a sore throat for 6 weeks. No swollen neck glands nor cough. Dr didn't make much of it - though maybe a bit of tonsillitis and prescribed penicillin which she said made it feel a bit better but after the course went back to painful again. Went back again and Dr said it was normal. Felt bad about taking up appt time. Dd insists her throat does not look normal. Any ideas?