-Cellulitis-
-has similar features to erysipelas but extends to the deep subcutaneous tissues
-cellulitis lesions are not raised
-demarcation from uninvolved skin is distinct
-tissue is red, warm, and painful to palpation
-most common organism is staph aureus and group A streptococcus
-treatment parenteral-vancomycin and zosyn. oral-cephalexin and bactrim or doxycycline
-Erysipelas-
-basically a superficial cellulitis with marked dermal lymphatic vessel involvement
-painful
-bright red, raised, edematous, indurated plaque with advance borders
-usually caused by group A beta hemolytic streptococcus
-can by caused by staph aureus
-treatment parenteral-vancomycin and zosyn. oral-cephalexin and bactrim or doxycycline
-Impetigo-
-crusted golden yellow stuck on erosions that become confluent
-usually on nose, cheek, lips, and chin
-Caused by Group A Streptococcus
-Can be caused by staph
-Treatment usually with cephalexin, but should add bactoban, bactrim or doxycycline for MRSA coverage
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