By Jmarchn (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
Patients and families should watch for the following conditions that need an urgent medical evaluation:
• Fever of 101° F or higher
• Chest pain
• Shortness of breath
• Increasing tiredness
• Abdominal swelling
• Unusual headache
• Any sudden weakness or loss of feeling
• Pain that will not go away with home treatment
• Priapism (painful erection that will not go down)
• Sudden vision change