It is not necessary to wait until serum bilirubin levels return to normal to resume activity (may take as long as 2 mo), but strenuous activity needs to be limited until the liver returns to normal size. When patient begins to feel better, he or she needs to understand the importance of continued adequate rest in preventing relapse or recurrence (Relapse occurs in 5%–25% of adults). Energy level may take up to 3–6 mo to return to normal.