Hello, I've had a bad case of hives all over my body for the last 3 days, it has come and gone in various places but I've been to the ER twice, all they did was load me with medication. I'm starting to notice the palate of my mouth having yellowish white spots, inflamed tonsils, and swollen taste buds on the back of my tongue. Also feels like phlem is in my throat and when it comes out it is white and clear. Also my lymph nodes are swollen behind my knees and by my hips, ajd slightly on my neck. any idea what this could be.