Sаmuel is а 13 yо prescribed the аntibiоtic Bactrim fоr a urinary tract infection. He is diagnose with DRESS syndrome, a type of allergic reaction that causes widespread rash, fever, swollen lymph nodes, and inflammation of internal organs like the liver or heart. He is given a drug to mitigate the reaction. Which of the following is the most appropriate drug that would be used to reduce the inflammation created?