This disease started four years ago, it periodically shows up 2-3 times a year and lasts for a week my gum below my left nostril begin to swell with a itchy feel and slowly disfigures the left side of my face due to the swelling after 3 days it of using antibiotics and it has reached its full shape it bursts and mucus comes out... Please do anyone have an idea WHAT CAUSES THIS ?? Or ANY TREATMENT THAT WILL PREVENT THIS FOR LIFE??