worsen
confound
aggravate
disimprove
exasperate
exacerbate
suffer
fall
compound
fall away
go from bad to worse
deteriorate
take a turn for the worse
pejorate
dismalize
go to shit
impair
go backwards
shit up
kick someone when they are down
poison
rot in hell
go downhill
infortune
make a pig's ear of
come to grief
rub salt in someone's wounds
do violence to
do more harm than good
poop on
skunk
mess
decline
reap the whirlwind
do one's worst
pay
hit one hard
go to pieces
drop behind
turn
outblunder
screw up
make heavy weather of
fan the flames
sour
besour
eat shit
kick a dog when it's down
scuzz up
go to pot