Two weeks ago I was cooking garlic bread when i noticed a thick smoke and bad odour coming from the oven, i had just moved and had not used the oven before. i thought it was perhaps residue from an oven cleaner but when i attempted to eat the garlic bread i noticed that the toxic smell had transferred to the garlic bread and it tasted very bad, i only ate the one small piece. The following day i noticed my mouth was very sore and my gums were irritated, so much so that i could barely talk and i could not chew or put any pressure on my mouth or gums. Yesterday I opened the oven and noticed a baking dish with a lid on it in the bottom of the oven - after removing the baking dish and openning it i descovered a melted and burnt plastic folder (ring binder) Is it possible that chemicals from the melting plastic have transferred to the garlic bread and caused this reasction in my mouth? I did see a dentist because the pain was so bad and he prescribed me amoxicillin which has seemed to have helped a little, should I also see a doctor?