Management of Ingrown Toenail with Erythema After Antibiotic Treatment

Assessment and Treatment Approach

The American College of Physicians recommends evaluating the ingrown toenail based on severity of symptoms, which can be classified as Grade 1: Nail fold edema or erythema with disruption of the cuticle, Grade 2: Nail fold edema or erythema with pain, discharge, or nail plate separation, and Grade 3: Surgical intervention or antibiotics indicated, limiting self-care activities 1, 3
For a patient who has recently started antibiotics, continue monitoring for response to treatment while maintaining appropriate wound care 1, 2

The American Academy of Dermatology recommends continuing current antibiotic course until completed, applying topical povidone iodine 2% to the affected area daily, and adding topical antibiotics/corticosteroids to reduce inflammation for mild infection (Grade 1) with recent antibiotic treatment 1, 2
For moderate infection (Grade 2) with recent antibiotic treatment, continue oral antibiotics with coverage for Staphylococcus aureus and other gram-positive organisms, and apply topical povidone iodine 2% and topical antibiotics/corticosteroids 1, 4

The American Podiatric Medical Association recommends providing preventive nail care instructions, including wearing comfortable, well-fitting shoes and cotton socks, avoiding cutting nails too short or rounding the corners, cutting nails straight across, applying daily topical emollients to cuticles and periungual tissues, and avoiding repeated trauma or pressure to the area 1, 2, 3

Reassess the ingrown toenail after 2 weeks of treatment, and if symptoms worsen or do not improve, consider obtaining bacterial/fungal cultures if infection is suspected, adjusting antibiotic therapy based on culture results, and referral for partial nail avulsion with or without phenolization for recurrent cases 1, 2, 4

The Infectious Diseases Society of America recommends avoiding continuing antibiotics beyond necessary duration (typically 1-2 weeks for mild infections), and inadequate wound care despite appropriate antibiotic therapy 4