The lump may not go away for several weeks. You will need to call your doctor if redness, pain or swelling in this hand or arm lasts for more than two days. The medicines may make you sick. You may have nausea, vomiting, hives, dry mouth, or a reddened face and neck. You will receive a low dose of radiation from the x-rays.
Severe problems are rare, but can happen.
If any of these problems happen, you will have to stay in the hospital. Surgery may be needed. Death is extremely rare, but is possible. You should not feel any pain during the ERCP procedure. Most people do not even remember the test after they awake.