Itchy skin without a rash (pruritus) is often caused by dry skin, nerve issues (like pinched nerves), or internal diseases affecting the liver, kidneys, thyroid, or blood (like anemia). It can also stem from allergies, certain medications, nutrient deficiencies (like Vitamin D or Iron), stress, or even some parasitic infestations. Persistent itching warrants a doctor visit to find the underlying cause, as it can signal serious conditions.
Causes
This is known as hell's itch, or the devil's itch, which can feel like a deep, painful, throbbing itch that lasts for a few days after sunburn. Hell's itch is fairly rare, and it tends to affect people with fairer skin, and those who have been exposed to the sun at higher altitudes—such as being in the mountains.
Itching (pruritus) in the body can stem from several nutrient deficiencies, with iron deficiency anemia being a common culprit, causing dry, itchy skin. Other potential deficiencies linked to itching include vitamin D, essential fatty acids, B vitamins (like B12), and minerals like calcium, zinc, and copper, affecting skin health, hydration, and histamine regulation.
For temporary relief of itching, try these self-care measures:
Drinking oatmeal can soothe the itchiness. It is especially recommended for people who have dry and sensitive skin. It is a dairy-free milk suitable for vegans which is also good for your overall skin health.
Itch - widespread: Summary
Allergy blood tests are used to help find out if you have an allergy. There are two general types of allergy blood tests: A total IgE test measures the total amount of IgE antibodies in your blood. A specific IgE test measures how much IgE your body makes in response to a single allergen.
While some observational studies and clinical trials have reported that vitamin D supplementation can reduce the severity of pruritus and improve skin health [14,15], other studies have shown mixed or inconclusive results [16,17].
Try an oral antihistamine: Drugs commonly used for allergy symptoms, such as Benadryl, may reduce itching and help a person sleep at night if hell's itch is keeping them awake. Use cool compresses: A cool, wet towel or washcloth can provide relief from the burn and may help ease the itchy feeling.
Types of itch
Itch has been classified into four different clinical categories. These include neurogenic, psychogenic, neuropathic, and pruritoceptive (2) (Table 1). These categories were developed based on anatomical, pathophysiological, and psychological factors. A given patient can have one or more types of itch.
The prevalence of phantom itch demonstrates the critical role of denervation in generating neuropathic itch; phantom itch is an extreme endophenotype of peripheral NI, which arise in the context of sensory deafferentation.
Contact your health care provider if your itching is severe, does not go away after a few weeks, or does not have an apparent cause. You may need other treatments, such as medicines or light therapy. If you have an underlying disease that is causing the itching, treating that disease may help.
As a skin lymphoma rash progresses, papules (small bumps) may start to appear. Some individuals with skin lymphoma also experience erythroderma, a reddening of the skin that's often accompanied by dryness, itchiness and scaliness.
MS itching feels like a deep, intense, "under-the-skin" itch that doesn't go away with scratching, often described as burning, tingling, pins-and-needles, or crawling, because it's a nerve signal issue (dysesthesia) from central nervous system damage, not a skin problem. It can appear suddenly, vary in intensity, and feel like bugs crawling or electric shocks, often affecting limbs, face, or trunk, and standard creams don't help.
Polycythemia vera is a chronic blood disorder in which the bone marrow produces too many red blood cells. People with polycythemia vera who experience itching have a higher chance of the disease developing into myelofibrosis and acute myeloid leukemia.
To stop itching fast, apply a cool compress or ice pack, use over-the-counter anti-itch creams with pramoxine or menthol, take a cool colloidal oatmeal bath, gently pat skin dry and moisturize with fragrance-free lotion, and wear loose cotton clothing to avoid irritation. Avoid hot water, harsh soaps, and scratching to prevent worsening the itch.
Dry skin: Your body loses moisture at night, which can make your skin itchy. Hormonal changes: At night, your body doesn't produce as many hormones as it does during the day and certain hormones reduce inflammation (swelling). As you have fewer hormones at night, your skin could be itchy.
Itching is a symptom of liver disease. You might itch anywhere on your body, but it's most common on the arms and legs, or the palms of your hands or soles of your feet. Some people itch all over. Itching in liver disease can vary from mild to exhausting.
Common Signs of Dehydrated Skin
Dehydrated skin can look and feel different depending on your skin type, but there are some telltale signs to watch for. You might notice: Tightness or itching.
When there is a deficiency of vitamin A, the skin can become dry, itchy, flaky, and rough in texture. To increase vitamin A intake, you can increase foods such as egg yolks, animal liver, orange and yellow vegetables and fruits such as carrots, tomatoes, pumpkins, sweet potatoes, papayas.
Take an oral antihistamine like Benadryl to help relieve itching quickly.
It's a fact that drinking enough water and moisturising your skin improves the function of your skin barrier, reducing dryness, itchiness, redness and irritation. The face and body care products you use can also have a big effect.