Clara came out of the toilet in Grand Lady's mansion. Her hands were trembling along the muted white wall. She had been going in and out of the toilet because of artificial diarrhea prepared by Grand Lady. In the sense that Grand Lady had deliberately caused Clara to have diarrhea.
"Miss, take the medicine first!" persuaded Vivi, who had already left, leaving Grand Lady who had just finished kicking the teak statue to shreds. Grand Lady's threat immediately made Vivi rush to catch up with her lady.
Clara's hands trembled as she received the pills from Vivi. It was the medicine her doctor prescribed if she is having diarrhea. After two failed attempts to receive the pill (because Clara's stomach would grow uncontrollably) she was finally able to take it safely.