Green-Black Patch Under a Lifted Acrylic
A regular client arrives for a three-week fill on a full acrylic set. On the right index and middle fingers the product has lifted along both sidewalls, and under the lifted edge there is a dark green-black patch with a soft, damp-looking nail plate and a faint musty odor. The client says nothing hurts and that she has been swimming twice a week. The tech plans to file the green area off with a medium-grit bit, apply dehydrator and primer, and rebuild those two nails so the set looks uniform for the client's wedding in four days. The appointment is booked for 45 minutes.
1. What does the presentation most likely represent, and what is wrong with the tech's plan?
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What it represents: a green-black discoloration under a lifted enhancement, on a soft, damp nail plate, is the classic picture of bacteria colonizing the pocket between product and nail plate. It is not a stain sitting on top of the nail, and the tech cannot diagnose it; she can describe it and refer.
Why the plan fails
- Filing with a medium bit abrades an already soft, possibly detached plate and can drive debris and organisms deeper into the pocket.
- Primer and dehydrator on macerated or non-intact tissue sting, irritate, and seal in moisture.
- Rebuilding over an active pocket traps the environment that created the problem and hides it from the client's physician.
Correct course: remove the product from both affected nails, inspect every other nail, cleanse gently with soap and water, do not seal the surface, and refer the client for medical evaluation. Disinfect all implements, discard contaminated files and buffers, and disinfect the table surface.
2. The client insists on a full set for her wedding in four days. Write the explanation the tech gives and the options she can offer.
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Script (describe, do not diagnose): 'Under the lifted edge on these two nails there's a green-black area and the nail underneath is soft. That happens when moisture and bacteria get trapped in the gap. I'm not able to treat it, and if I cover it up it gets worse and you can't see it. I'd like you to have a doctor look at it before I put product back on those two.'
Options
- Refuse product on the two affected nails; provide a natural-nail manicure with polish or a lacquer that can be removed easily.
- If the client also wants product on the eight unaffected nails, that is a clinical and ethical judgement based on their condition; document the client's choice and the referral in writing.
- Never offer to 'file it out and seal it' as a compromise, and never guarantee the wedding set on those two nails.
- If the client refuses medical care, record that she declined, the date, and that she was told the risks. That record protects the tech and the salon.
3. What must change in prep and aftercare so this does not recur, and what happens to the tools used today?
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Prep and application
- Fit the product to the plate with a clean, dry margin so no product touches skin; a seal that touches cuticle lifts first.
- Dehydrate properly but do not over-file the natural plate; excessive thinning makes it flex and lift.
- Check every fill for lifting along the sidewalls and free edge, not just the visible top.
- Keep fills on a 2-3 week cycle; a lift left open for weeks is what creates the pocket.
Aftercare advice
- Do not use nails as tools, do not pry, do not soak for long periods; dry thoroughly after swimming.
- Report any lifting, discoloration, or odor immediately rather than waiting for the next fill.
Tools and surfaces
- Implements that touched the affected nails get cleaned, then disinfected with an EPA-registered hospital disinfectant at full label contact time.
- Files, buffers and porous items that contacted the pocket should be discarded, not reused.
- The work surface, lamp and hand rest get disinfected; the tech changes gloves and washes hands before the next client.