Skin
Medicines for Onycholysis
When a nail lifts away from the nail bed underneath, leaving a white or discoloured area — usually harmless, with many causes, and often growing out with care.
Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.
Quick answer
What is Onycholysis?
Onycholysis is the separation of a nail (finger or toe) from the skin underneath it (the nail bed), starting usually at the tip or side and progressing back towards the base. The lifted part of the nail looks white, yellowish or discoloured because there is air (rather than pink nail bed) beneath it, and debris can collect in the space.
- How it is treated: Management focuses on treating any underlying cause and protecting the nail so it can reattach as it grows.
- Self-care: Keeping the affected nail trimmed short, avoiding trauma, moisture and picking under the nail, wearing gloves for wet or chemical work, gentle nail care, and treating any underlying cause all help the nail reattach as it grows out.
- When to seek help: See a GP if a nail is lifting and the cause is unclear, several nails are affected, there are signs of infection (pain, redness, pus), or there are other symptoms, so any underlying cause (such as psoriasis, fungal infection or thyroid problems) can be found and treated.
What it is
Onycholysis is the separation of a nail (finger or toe) from the skin underneath it (the nail bed), starting usually at the tip or side and progressing back towards the base. The lifted part of the nail looks white, yellowish or discoloured because there is air (rather than pink nail bed) beneath it, and debris can collect in the space. It is common and usually not serious. There are many possible causes, including injury or trauma (including over-manicuring or picking under the nail), skin conditions such as psoriasis or fungal nail infection, exposure to moisture, chemicals or nail products, certain medicines, and sometimes thyroid problems or other conditions; occasionally no cause is found. Because the space under the lifted nail can allow infection (such as fungal or bacterial) to develop, and because the appearance can be a clue to an underlying condition, it is worth identifying the cause.
How it is treated
Management focuses on treating any underlying cause and protecting the nail so it can reattach as it grows. The lifted portion of nail will not stick back down, but as the nail grows out, healthy nail attaches again — so keeping the affected nail trimmed short (to reduce further lifting and trap less debris), avoiding trauma and moisture, wearing gloves for wet or chemical work, and gentle nail care all help. Any underlying skin condition (such as psoriasis or a fungal infection) or other cause is treated, which is important for recovery. If infection is present, that is treated. Because nails grow slowly, recovery can take some months, particularly for toenails. If the cause is unclear, the change is widespread, or there are other symptoms, assessment helps identify any underlying condition. The reassuring message is that onycholysis is usually harmless and often improves as the nail grows out once the cause is addressed.
For this condition, these medicines
Medicine classes used for Onycholysis
Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.
Beyond medication
Lifestyle and self-care
Keeping the affected nail trimmed short, avoiding trauma, moisture and picking under the nail, wearing gloves for wet or chemical work, gentle nail care, and treating any underlying cause all help the nail reattach as it grows out.
When to get help
When to see a doctor
See a GP if a nail is lifting and the cause is unclear, several nails are affected, there are signs of infection (pain, redness, pus), or there are other symptoms, so any underlying cause (such as psoriasis, fungal infection or thyroid problems) can be found and treated.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Onycholysis: frequently asked questions
Why has my nail lifted off the nail bed?
Nail separation (onycholysis) has many causes — injury or over-manicuring, skin conditions like psoriasis or fungal infection, moisture or chemicals, some medicines, and occasionally thyroid problems. It is usually harmless, and identifying the cause helps recovery.
Will a lifted nail reattach?
The lifted part will not stick back down, but as the nail grows out, healthy nail reattaches. Keeping it trimmed, avoiding trauma and moisture, and treating any cause help. Recovery can take months, especially for toenails.
Sources
Where this is drawn from
- NHS — Nail problems
- British Association of Dermatologists guidance
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