Our expert says:
Aphtous ulcers can be caused by chemical irritants like toothpaste ( especially the whitening ones) viruses or sometimes happen without cause. Kenalog in Orobase ointment work wonders, also rinse your mouth with a solution of salt water. The sinus drip should not be a cause. Try beconase aqeous nose spray twice a day for the PND - but it only starts working after about a week's use and you have to use it longterm. You could use an immunebooster too (Viral choice C, Moducare or echinacea)
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