 The need for rest and return to usual activities after the acute phase of the infection may reasonably be based on the person's general energy levels.Nevertheless, in an effort to decrease the risk of splenic rupture experts advise avoidance of contact sports and other heavy physical activity, especially when involving increased abdominal pressure or the Valsalva maneuver (as in rowing or weight training), for at least the first 3–4 weeks of illness or until enlargement of the spleen has resolved, as determined by a treating physician.Paracetamol (acetaminophen) and NSAIDs, such as ibuprofen, may be used to reduce fever and pain.