I have knuckle pads despite medications. What else can help?

Hi,

Welcome to icliniq.com know your concern.

I will describe your disease, chronic knuckle pads, fully, using current dermatology research, and then go through all the available treatment options, including what actually works and what typically does not.

Based on the image (the attachments were removed to protect the patient's identity) that you have shared in the history, you are having knuckle pads, which are also called subcutaneous fibroma or Holoderma. They are usually painless, non-infectious, and not dangerous, but unfortunately, they are known to be notoriously treatment-resistant.

Knuckle pads are considered a form of localized fibromatosis, meaning they involve excess collagen and fibroblast proliferation rather than active inflammation.

This explains why treatments like topical keratolytics (Kerasal or Kerasol F) and intralesional corticosteroids often show little or no response, as steroids mainly suppress inflammation and not fibrous tissue.

From a research and evidence-based perspective, treatment options can be divided into conservative, medical, procedural, and experimental approaches.

Among topical therapies, high-strength keratolytics such as Salicylic acid (20 to 40%), urea (30 to 40%), or Lactic acid combinations may soften the surface but rarely reduce size significantly.

Topical retinoids (Tretinoin or Adapalene) can be tried for several months to reduce epidermal hyperplasia, but results are variable and usually modest.

Silicone gel sheets used regularly may help flatten lesions slightly over long-term use by reducing collagen stimulation, though evidence is limited.

Regarding injectable therapies, intralesional steroids (like Triamcinolone) often fail, as you have already experienced. Some studies and case reports suggest intralesional 5 Fluorouracil is helpful in selected cases, as it inhibits fibrous growth. Pain, ulceration, and recurrence are possible side effects.

Procedural options include cryotherapy, which generally has poor outcomes and may cause pigmentary changes or scarring.

Laser therapies (CO2 (carbon dioxide) laser or Er: YAG (Erbium-doped yttrium-aluminum-garnet) laser) have been used to debulk lesions, but recurrence is common because the fibrotic process persists beneath the surface.

Surgical excision is usually not recommended as a routine option because recurrence rates are high, and scarring over joints can cause stiffness or cosmetic dissatisfaction. Now moving on to what the best treatment options are in your case.

I would suggest you go for either intralesional Fluorouracil (5-FU) injections on the knuckle pads, see the response, and then get all done.

Another option for you, in my opinion, is a strong topical formulation called The combination of cantharidin, podophyllin, and salicylic acid (often referred to as CPS formulation).

This is a powerful, topical, keratolytic compound used by professionals to treat recalcitrant warts and certain skin growths. You can get it done on one of the knuckle pads to see the result; it should be done only by a proper expert and not be done at home. It has the highest cure rate so far for your issue.

Also, try to focus on eliminating aggravating factors. Repeated friction, pressure, or micro-trauma over the knuckles can maintain or worsen the pads.

This includes habits like resting knuckles on hard surfaces, gym activities involving gripping, manual work, or unconscious rubbing.

If any such habit exists, consciously stopping it is crucial. In some patients, simply removing chronic trauma prevents further progression.

I hope it helped with your query.

Thank you.