Urea is used to treat abnormally thick or tough skin or nails. It's available over-the-counter in different formulations.
Hyperkeratosis (abnormally thick or tough skin or nails)
Urea is a topical skin product that loosens the outer layers of the skin and nails. This helps soften areas that are abnormally thick or tough.
Source: DailyMed
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Few side effects if used for short periods of time
Some forms are available over-the-counter (OTC).
Available as lower-cost, generic forms
Doesn't usually treat the cause of the abnormal skin (e.g., eczema, psoriasis) or nail (e.g., fungal infection)
Usually takes several weeks to fully work
Before applying urea, make sure the affected area(s) of skin are clean and dry. After using the medication, wash your hands well to prevent it from getting in your eyes, unless your hands or fingernails are the areas being treated. If urea gets in your eyes, rinse them well with water.
When using urea on the skin, only apply the smallest amount needed to cover the affected area(s), and be sure to rub it in gently and completely. When using urea nail products, try not to get it on the skin next to the nails.
Shake the container well before using the lotion, foam, or suspension formulations.
Stinging, burning, itching, or irritation are typical side effects of urea, and should go away after you stop using the medication. Talk to your provider if these side effects are bothersome, or if you notice redness or rash.
Avoid putting urea on or near your eyes, lips, and genitals (groin area) unless your provider tells you to do so. Those areas tend to be more sensitive and are more likely to get side effects.
It's best not to use cosmetics or other products on the affected skin after applying urea, since you want to make sure that the medication works well and the area is able to heal. If you are using this medication on thickened nails, which are often due to fungal infection, you may want to ask your provider for antifungal recommendations to get the best effect.
Stop using this medication once your condition is under control. If you don't see improvement after about 2 weeks, talk to your provider.
Urea can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Urea is only for external use on the skin and nails. Avoid contact with your eyes, lips, and genitals (groin area). Keep this medication out of the reach of children to avoid accidental exposure. Ingesting this medication can cause serious side effects.
Use urea only as directed by your prescriber, or based on the package instructions. If you notice any redness, irritation, or rash, stop using this medication and contact your provider.
Urea foam canisters can contain a lot of pressure. Do not puncture or break the canister, and keep it away from high temperatures and open flames to avoid accidental injury.
Urea is usually applied to the affected area(s) 2 times a day. It may be used more or less frequently depending on your condition and the specific product you are using.
Hyperkeratosis (abnormally thick or tough skin or nails)
Face or scalp actinic keratosis (scaly precancerous spot or growth on the skin) in adults - all brands and strengths
Genital and anal warts in adults and children 12 years and older - Zyclara 3.75% and Aldara 5% only
Superficial basal cell carcinoma (a type of skin cancer) in adults - Aldara 5% only
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