Treating Psoriasis on Your Hands and Feet

How to ease symptoms on the hardest-working parts of your body

Doctor Checking Psoriasis on Senior Woman patient hand.
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Your hands and feet may be the hardest-working parts of your body: They are in almost constant motion and continuously interact with the world. So if they are affected by psoriasis, your quality of life may be more severely impaired than if psoriasis struck elsewhere on your body. Lesions, scaling and blisters in the delicate folds of fingers or on the soles of the feet can be agonizing and hard to hide.

Fortunately, there are numerous steps you can take — both on your own and with the help of your doctor — to ease psoriasis symptoms when they appear on your hands and feet. Read on for the details.

Treating Psoriasis on Your Hands and Feet

For mild flareups, washing your hands and feet with a mild soap or soap substitute can keep them clean with minimal irritation. Superficial splits in the skin can be closed with an over-the-counter medical glue such as New-Skin Liquid Bandage to prevent inflammation and infection. Be aware that it's normal for New-Skin and other products like it to sting when placed in skin fissures.

Meanwhile, moisturizers can help to maintain your skin's flexibility and reduce itching. 

What Your Doctor Can Do

To reduce more severe inflammation, itching and scaling on your hands and feet, your doctor may prescribe any of the following topical treatments, either alone or in combination:

  • Medicinal coal tar can slow the overgrowth of skin cells and improve the appearance of the skin. It is available over-the-counter in a variety of lotions, creams and bath solutions under such brand names as Elta Tar and Oxipor. Allow about eight weeks to see results. It is worth noting that coal tar is difficult to find in California because of a concern that it may cause cancer. The U.S. Food and Drug Administration, though, has approved products containing up to 5% coal tar as a safe and effective psoriasis treatment.

How to Make Treatments More Effective

In order for topical treatments to be most effective, you may need to remove excess layers of skin first, so that the treatment can be properly absorbed.

Try soaking the affected area in warm water — adding some bath oil to the water may help — and follow up with a thorough scrubbing to slough off any scales or calluses.

  When scrubbing, be careful not to scrub scales too hard because traumatizing the skin may actually make psoriasis worse.

To intensify the effects of a topical treatment, your doctor may recommend occlusion, which means insulating the treated area for a period of time. This can be achieved by using cotton or plastic gloves on the hands and plastic bags covered by socks on the feet. This should only be done if a doctor recommends it, since you may absorb too much of the medicine that way.

If topical treatments are ineffective in more severe cases of psoriasis of the hands or feet, your doctor may choose other treatments. Options include methotrexate, Psoralen Ultraviolet A (PUVA) and Soriatane.

These are powerful drugs that can have dangerous side effects. Your doctor will advise you that methotrexate could damage your liver. PUVA is a process that involves taking a drug that sensitizes you to light and then exposes the affected skin to ultraviolet rays. For Soriatane, please speak with your dermatologist about whether it is a good choice for you.

Fingernails and Toenails in Psoriasis

Up to half of people with psoriasis will see changes in their fingernails and toenails. Symptoms include pitting in the nail surface, discoloration or thickening of the nail and separation of the nail from the nail bed.

These changes are caused by effects of psoriasis at the base of the nail, where the nail is formed. Since this is a difficult spot to reach, topical treatments are typically ineffective.

More effective treatments include steroid injection into each nail and controlled exposure to ultraviolet rays. Biologic drugs, which are injected or given intravenously, are also a good option to treat this problem. Neither of these is a permanent solution, though, so those with a milder case may choose to treat the problem cosmetically (by buffing out an uneven surface or wearing nail polish, for instance), if at all.

Psoriatic Arthritis in Your Ankles and Feet

Up to 30% of psoriasis sufferers will develop psoriatic arthritis, a condition that causes pain, stiffness and swelling in the joints. Treatment options include biologic drugs, which are becoming the treatment of choice, prescribed nonsteroidal anti-inflammatory drugs and steroid injections in the affected areas.

The joints of the ankles and feet are particularly vulnerable to psoriatic arthritis and may sometimes cause swelling to the point that shoes are uncomfortable or impossible to wear. If you find that changes in your ankles and feet are making it difficult to go about your daily life, consult a podiatrist.

Sources:

National Institutes of Health. Psoriatic Arthritis fact sheet. Accessed Feb. 24, 2016.

National Psoriasis Foundation. Over-the-Counter Topicals fact sheet. Accessed Feb. 24, 2016.

National Psoriasis Foundation. Tough to Treat: Psoriasis on the Hands and Feet. Accessed Feb. 24, 2016.

National Psoriasis Foundation. Nail Psoriasis: More than Cosmetic. Accessed Feb. 24, 2016.

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