Can recent nail‑salon manicures cause swelling and peeling of three fingernails that began about one month ago in an adult establishing care?

Yes, nail salon manicures can absolutely cause swelling and peeling of fingernails

Recent nail salon manicures are a well-documented cause of fingernail swelling and peeling, primarily through allergic contact dermatitis from acrylate compounds found in gel polishes, acrylic nails, and nail glues. This presentation is consistent with acrylate-induced allergic contact dermatitis, which has become increasingly common with the popularity of gel and acrylic nail services 1, 2, 3.

Clinical Presentation and Mechanism

The patient's symptoms—swelling and peeling of three fingernails over one month—fit the classic pattern of acrylate allergic contact dermatitis. This condition develops from:

• Sensitization to acrylate monomers, particularly 2-hydroxyethyl methacrylate (2-HEMA), 2-hydroxypropyl methacrylate (2-HPMA), and ethyl cyanoacrylate found in nail glue 3, 4
• Repeated or improper exposure during gel polish application, especially when products aren't fully cured under UV lamps 1
• Direct contact with uncured acrylates during application or removal

The involvement of only three nails (rather than all) is typical, as exposure patterns vary based on which nails received treatment or had the most contact with uncured products 2.

Key Diagnostic Features to Assess

Look specifically for:

• Periungual inflammation and swelling around the affected nails
• Onycholysis (nail separation from the nail bed)—a hallmark sign that can be painful and slow to heal 1
• Nail dystrophy with peeling or splitting of the nail plate
• Eczematous changes on fingertips, dorsal hands, or even distant sites like face and neck (from touching face with contaminated fingers) 4
• Paronychia (nail fold infection/inflammation)
• History of recent gel polish, acrylic nails, or press-on nails within the past 1-2 months 2, 5

Differential Diagnosis Considerations

While acrylate dermatitis is most likely given the salon exposure, you must rule out:

• Onychomycosis (fungal infection)—but this typically doesn't cause acute swelling and usually affects toenails more than fingernails 6
• Bacterial infection (Pseudomonas causes green/black discoloration, not typically peeling) 6
• Chronic trauma from nail procedures—but the nail bed would appear normal on examination 6
• Psoriasis or lichen planus—but these have distinct clinical features and wouldn't have the temporal relationship with manicures 6

Immediate Management Algorithm

1. Discontinue all nail cosmetics immediately—complete acrylate avoidance is essential 1, 3

2. Clinical examination: Assess for onycholysis, periungual dermatitis, and nail dystrophy patterns

3. If fungal infection cannot be excluded clinically: Obtain nail clippings for KOH prep and fungal culture before starting treatment 6. Take material from discolored or dystrophic parts, cutting through the entire nail thickness.

4. If acrylate dermatitis is confirmed or highly suspected:

   • Topical corticosteroids (moderate to high potency) for periungual inflammation
   • Emollients for barrier repair
   • Strict avoidance of all acrylate-containing products
   • Consider patch testing with 2-HEMA and ethyl cyanoacrylate if diagnosis unclear or symptoms persist 3, 4

5. Patient education on alternatives: Traditional acrylate-free nail polishes only 3

Critical Pitfalls to Avoid

• Don't assume it's fungal just because nails are involved—the acute onset after salon exposure and involvement of only three fingernails points away from onychomycosis 6
• Don't overlook occupational exposure if the patient works in nail services—beauticians have higher rates and more severe presentations 4
• Don't miss cross-reactivity: Patients sensitized to nail acrylates can react to dental acrylates, adhesives, and other methacrylate-containing products 4
• Recognize that "gel" and "shellac" are acrylate-based despite marketing suggesting they're gentler alternatives 3

Long-term Considerations

Onycholysis from acrylate dermatitis is painful and slow to heal, often taking months for complete nail regrowth 1. The patient needs counseling that:

• Complete nail recovery requires 3-6 months (time for full fingernail regrowth)
• Permanent avoidance of acrylate products is mandatory—re-exposure will cause recurrence
• Even brief contact with uncured gels during application can trigger reactions
• Cross-reactions with other acrylate products (dental materials, adhesives) are possible 4

The evidence strongly supports that modern nail salon services, particularly gel polishes and acrylics, are a growing cause of nail pathology through allergic contact dermatitis 1, 2, 3. This represents a shift from traditional concerns about fungal infections and requires updated clinical awareness.