Tylenol/Advil

GG

My 15 month old is sick and absolutely miserable. Last night she had a temp of 104.5. Today it’s around 101-102. I’ve been alternating Tylenol and Advil but it’s not lowering her temp and it’s scaring me. Like I said she’s 15 months and about 23-24 pounds. The box of meds has different amounts then what I see online. How much would you give her? I feel if it’s not lowering her temperature then it’s not enough. Help!!