Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Go to emergency care for confusion, fainting, trouble breathing, severe weakness, persistent vomiting, or rapidly worsening symptoms.
Seek urgent medical advice if jaundice, dark urine, pale stool, upper abdominal pain, fever, or chills return.
Some stents must be removed or exchanged within a planned period.
Missing that follow-up can allow the stent to clog and infection to return.
Routine follow-up may include repeat liver blood tests, review of culture results, and imaging or another endoscopic procedure.
People treated for gallstone-related cholangitis may need a surgical consultation about gallbladder removal.
Those with a stricture, chronic bile-duct disease, or suspected tumor may need ongoing specialist care.
The article also says
Before leaving the hospital, patients should understand what caused the blockage, whether it was fully treated, and whether a stent remains in place.
Take antibiotics exactly as directed and contact the treating team if side effects make them difficult to take.
Do not stop or extend antibiotics without medical guidance.
Every sign above is quoted from the sofidex article on Cholangitis. If you are not sure, err upward — it is always reasonable to be checked.