hello, as per location of sores- it seemed to be some viral infection, but all viral infections mostly heals within 2weeks.. but since your daughter is still facing them, i would suggest you to consult an oral medicine specialist as by clinical examination he can diagnose it whether- infective/allergic origin/side effects origin..
Afrin Side Effects
These include but are not limited to: High blood pressure
(hypertension),Heart palpitations,Difficulty passing urine
,Signs of an allergic reaction
, such as:An unexplained rash or hives,Itching,Unexplained swelling, especially of the mouth, lips, or throat,Wheezing or difficulty breathing
I would also suggest you to consult an ENT surgeon for nasal decongestion ..and get proper treatment at earliest..
multivitamins containing Vit-Band C, Lycopene will help in healing of sores in all cases..
if sore are painful then apply local anaesthetic
gels.. prior to meals for comfort during chewing..
after consult from ENT surgeon/Oral medicine specialist take medicines/gels- antiviral/antibacterial/antifungal (infection) or antihistaminic/steroids (allergic/side-effect)
please try to get her off from Affrin at earliest..