New to PSC!

Hello, five days ago my 13 year old boy was diagnosed with Primary Sclerosing Cholangitis (PSC). They have found sludge in his common bile duct which caused the jaundice two days prior to diagnosis. Upper Endoscope cleared the sludge, but the changes in the bile duct system suggests PSC. Now another ERCP, colonoscopy and liver biopsy is suggested, however the possibility to cause more harm during procedure, anesthesia twice in 14 days, and going through the above mentally is scary.
Is any of the cleansing: parasite, bowel, etc. gentle enough with gall bladder, common bile duct deformities? Thank you.