http://www.prescriptiondrug-info.com/threads/allergic-reaction-D75028_s2.htm Recent Posts About allergic reaction at The People's Medicine Community. I took a 10 day dose of Ceftin and then broke out in hives and took 6 days of steroids and benadryl and Pepcid for that. Benedryl was making me unable to function so stopped taking it and began taking homeopathic drops for hives. It has been 23 days since the first dose of Ceftin. How long will this take to get out of my system? en-us Copyright 2009 Prescription Drug Info All Rights Reserved. 11/21/2009 1:23:01 AM 20 http://www.PrescriptionDrug-Info.com/threads/allergic-reaction-D75028_s2.htm#160244 After 23 days, it is already long out of your system, if you still have hives, then I am suspicious that something other than the <a href="http://www.PrescriptionDrug-Info.com/Drugs/Ceftin.asp" target="Ceftin.asp">Ceftin</a> is causing them and you really need to speak to your doctor. Sat, 16 Aug 2008 18:54:38 -0800