My brother had choledocholithiasis and one episode of mild acute cholangitis. so, 25 days later after his first symptoms he got the ercp treatment. cbd is now clear. will the amount of time taken (25 days) for treatment cause liver cirrhosis to him?

Usually it takes much longer biliary leak and sludge accumulation in liver to cause liver cells to die. Most likely not cirrhosis but some liver damage may have occurred. Liver has significant reserves so it has to be destroyed pretty much 80% or so before one feels the loss. Hope it helps.

What you described is unlikely to result in cirrhosis. Your brother should abstain from alcohol. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs.