Paronychia in Emergency Medicine Medication
- Author: Heather Murphy-Lavoie, MD, FAAEM; Chief Editor: Pamela L Dyne, MD more...
Medication Summary
Antibiotics are not necessary if the incision successfully achieves adequate drainage and no cellulitis is present. Most paronychia infections can be managed without antibiotics. Over-the-counter analgesics are usually sufficient. If cellulitis is present, antibiotics are indicated. Although penicillin covers oral flora, it does not cover methicillin-resistant Staphylococcus aureus (MRSA). Trimethoprim and sulfamethoxazole (TMP/SMX), doxycycline, or clindamycin may be considered to cover community-acquired MRSA and anaerobic organisms. Combination therapy with an IV agent that provides antimicrobial activity against staphylococci is used for inpatient therapy. See Hand Infections for a detailed discussion of antibiotics.
Chronic paronychial infections are usually managed with oral antifungals such as ketoconazole, itraconazole, or fluconazole.[21] This is beyond the scope of emergency medicine practice since many of these agents require a prolonged course with monitoring of laboratory tests to avoid complications.
Antibiotics
Class Summary
Therapy must cover all likely pathogens in the context of the clinical setting.
Clindamycin (Cleocin)
Semisynthetic antibiotic produced by 7(S)-chloro-substitution of 7(R)-hydroxyl group of parent compound lincomycin. Inhibits bacterial growth, possibly by blocking dissociation of peptidyl tRNA from ribosomes, causing RNA-dependent protein synthesis to arrest. Widely distributes in the body without penetration of CNS. Protein bound and excreted by the liver and kidneys.
Penicillin VK (Beepen-VK, Betapen-VK, Pen.Vee K, Robicillin VK, V-Cillin K, Veetids)
Inhibits the biosynthesis of cell wall mucopeptide. Bactericidal against sensitive organisms when adequate concentrations are reached, and most effective during the stage of active multiplication. Inadequate concentrations may produce only bacteriostatic effects.
Cephalexin (Keflex)
First-generation cephalosporin arrests bacterial growth by inhibiting bacterial cell wall synthesis. Bactericidal activity against rapidly growing organisms. Primary activity against skin flora. Used for skin infections or prophylaxis in minor procedures.
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