Paronychia Organism-Specific Therapy 

Updated: Feb 11, 2016
  • Author: Elizabeth M Billingsley, MD; Chief Editor: Thomas E Herchline, MD  more...
  • Print

Specific Organisms and Therapeutic Regimens

Organism-specific therapeutic regimens for paronychia are provided below, including those for methicillin-susceptible Staphylococcus aureus, methicillin-resistant S aureus, Streptococcus pyogenes, Pseudomonas aeruginosa, Eikenella corrodens, and Candida. [1, 2, 3, 4, 5, 6, 7]

Multiple organisms are common in paronychia; cultures may be obtained to identify the underlying cause.

Methicillin-susceptible Staphylococcus aureus (MSSA)

See the list below:

Methicillin-resistant S aureus (MRSA)

See the list below:

Streptococcus pyogenes

See the list below:

Pseudomonas aeruginosa

See the list below:

Eikenella corrodens

See the list below:

  • Amoxicillin-clavulanate (875 mg/125 mg) 1 tablet PO BID or
  • Trimethoprim-sulfamethoxazole (160 mg/800 mg) 1 DS tablet PO BID

Candida (if unresponsive to topical antifungals)

See the list below: