i had got on Bactrim for a skin infection from a bite on my left ...

i had got on Bactrim for a skin infection from a bite on my left upper thigh I was on it for 9 days (it was 10 day supply) did ok then on the 9th day of taking it after my night dose my throat started getting to where it was hard to swallow an I started throwing up so I went in an laid down with my mom an woke up in the mid morning covered in hives that itched and burned an looked as if they were 1/2 in to 1 in off the skin we rushed me to urgent care an they said it was an allergic reaction to sulfa gave me steroid peels and a new antibiotic to clear up a bladder infection well the next day went back in my eye swollen shut an my lip tripled in size they gave me a steroid shot an told me take Benadryl...this has lasted almost 6 days now..knowing God is healed me!.......just wondering how long symptoms will last ?