Caught cellulitis the day i was finishing antibiotics for strep! day5 of duricef, (cefadroxil) have runny nose, low fever&chills. could it be caused by cellulitis?

Details: You don't "catch" cellulitis. Runny nose + low fever = virus, not related to antibiotic. Does "strep" mean strep throat? You have not described "cellulitis". This is not a stand-alone diagnosis. Exactly where and exactly what symptoms? 90% of "cellulitis" diagnoses by non-dermatologists are wrong. Most cellulitis is caused by staph sensitive to Duricef (cefadroxil). Question this diagnosis and consider another