How do you differentiate cellulitis from abscess and how does management differ?

• A. An abscess presents as diffuse erythema and warmth without fluctuance; cellulitis presents as a fluctuating lump.
• B. Abscess is treated with antibiotics only; cellulitis requires incision and drainage.
• C. An abscess presents as a fluctuating lump; cellulitis is diffuse erythema and warmth without fluctuance; abscess requires I&D; cellulitis treated with antibiotics, elevation, and wound care.
• D. Both abscess and cellulitis present the same; management is unchanged.

Answer: (C)