Hands, feet and nails
Psoriasis on the hands and feet can lead to cracking, blisters and swelling. There are several treatments that can help psoriasis in these areas. A few lifestyle changes also can ease the discomfort of hand, feet and nail psoriasis.
Treating hands and feet
Due to the delicate nature of the skin and bones in the hands and feet, you should apply treatment to your hands and feet carefully. Further, to avoid long-term damage and scarring, treatment should begin as soon as possible.
Traditional topical treatment of palm and sole psoriasis includes tar, salicylic acid and corticosteroids. Combinations of these three may work better for you than using each individually. Moisturizers, mild soaps and soap substitutes are also good over-the-counter alternatives.
Calcipotriene can also effectively treat psoriasis on hands and feet. You should wear cotton gloves so the medicine doesn't get on sensitive skin sites, such as the face or skin folds. A regimen alternating calcipotriene and potent topical corticosteroids may be helpful.
If topical medications do not work, your doctor may recommend methotrexate, cyclosporine or Soriatane (acitretin). Methotrexate can clear many cases of palm and sole psoriasis within four to six weeks.
The risks of side effects from phototherapy are reduced by combining low doses of oral retinoids with UVB or PUVA. The combination of low doses of oral retinoids with PUVA or UVB phototherapy is one of the most effective treatments available for palm and sole psoriasis. Special light therapy units for palms and soles are available.
Pustular psoriasis of the palms and soles
You will most likely be prescribed corticosteroids and coal tar at first for pustular psoriasis. Phototherapy, oral retinoids and/or methotrexate may also enter the fold if your symptoms have not improved. For difficult cases, doctors may prescribe a biologic drug.
Nail changes occur in up to 35 percent of people with psoriasis and at least 80 percent of people with psoriatic arthritis. The most common nail problems are:
- Pitting — shallow or deep holes in the nail
- Deformation — alterations in the normal shape of the nail
- Thickening of the nail
- Onycholysis — separation of the nail from the nail bed
- Discoloration — unusual nail coloration, such as yellow-brown
Because psoriasis affects the nail when it is being formed, nail psoriasis is challenging to treat. The nail bed is difficult to penetrate with topical medications. Corticosteroid injections into the nail bed have been used with varying results. In addition to topical treatments and phototherapy, other nail psoriasis treatments are:
- Corticosteroid injections into each affected nail;
- Cosmetic repair including nail scraping and filing, nail polish, artificial nails and surgical removal.
Onychomycosis, a fungal infection that causes thickening of the nails, may be present with nail psoriasis. It can be treated with systemic anti-fungal agents. About one-third of people who have nail psoriasis also have a fungal infection.
Keep nails as short as possible. Loose nails can continue to be injured if they rub against surfaces. It is important to protect your nails from damage because trauma will often trigger or worsen nail psoriasis. One easy way to do this is to wear gloves while working with your hands. Trickett recommends wearing cotton gloves under vinyl or nitrile gloves when you are cleaning, cooking or washing dishes. Latex gloves are not recommended.
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Last updated on by the National Psoriasis Foundation