I often tell the story of a client I once had who arrived in his home country for his interview. He had an approved Form I-601A stateside waiver, no criminal record and all of his papers were in order.
Unfortunately he arrived in his country ill with flu like symptons. I've heard this is common when traveling. Once there, he became sicker. Being in a rural area, his mother obtained some medicine from a neighbor to help him feel better and so that he could make it to his medical exam. Big mistake! Whatever was in the local medication he took caused him to fail his medical exam! He then had to wait to see a psychologist and take a new medical exam which he passed. However once something like this happens it is not easily remedied. He was taken out of routine processing and his case was put aside for further review - a/k/a administrative processing.
That case was delayed for nearly three months before that young man was allowed to finish processing be allowed to return home where his family was anxiously waiting.
Bottom line: Don't take medications unless they are under a doctor's order so that if something should show up, you will have a medical report to explain any unusual medical results and a doctor to back up your results. Take your medicines with you so that you can show the doctor there what you are taking. Many medications for stomach problems will often show up as any number of drugs. Better to put up with a little discomfort until you can return home than take a chance of being placed in administrative processing.
-- 6/6/2019 4:49:40 PM: post edited by Admin.