My 5 year old daughter started having a fever july 4th. She presents with yellow looking fever blisters on her gums, very painful, a red small spot under her tongue, the roof of her mouth looks scraped yellowish and red, whole inside of mouth swollen, yellowish spots, swollen and severely sore throat, difficulty swallowing. Her gums look bruised bluish, she now has an earache and swollen lymph nodes, a fever that comes and goes, and has a bad cough. Whats going on????