My Grandaughter Is 15yrs Old She Was In The Er

my grandaughter is 15yrs old she was in the er had a fever of 102 it hurt her to cough in her chest the doctor said she had a broncular something he said to take tylenol and ibuprofen rotate them every 4-6 hrs and benadral at night to sleep her cough has got worse and she congested she took 1 hr ago 2 benadrl and 1 500 ibuprofer can she take 1 tablet of musinex