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Itchy Skin

Medical Cannabis and Itchy Skin

Having itchy skin is uncomfortable, annoying and, depending on severity, can have debilitating effects on quality of life. As well as the uncomfortable urge to scratch, this symptom can come with inflamed skin, spots or blisters, dryness and leathery patches. It may affect a small area on your arms, legs, scalp or anywhere else or it may cover your whole body.

Having itchy skin is uncomfortable, annoying and, depending on severity, can have debilitating effects on quality of life. As well as the uncomfortable urge to scratch, this symptom can come with inflamed skin, spots or blisters, dryness and leathery patches. It may affect a small area on your arms, legs, scalp or anywhere else or it may cover your whole body. Although it’s a physical issue, itching can impact sleep and mental health, so its seriousness shouldn’t be underestimated. 

There are lots of reasons someone might have skin that itches. The cause is sometimes as simple as an allergic reaction to a certain fabric, detergent or beauty product. Itchy and raised skin is also the main symptom of hives, which can be caused by allergies, cold or flu viruses, physical triggers such as tight clothes or sunlight, or stress. According to the NHS, allergic reactions and hives should pass on their own, but medical attention should be sought if itching persists for more than two days.

However, itching skin is also a symptom of more serious, long-term conditions, including eczema and psoriasis, in which case it might prove persistent, reoccur often and could impair healing. It could also indicate liver or kidney disease and a deep itch that feels like it’s below the skin is often a symptom of restless legs syndrome.

While most research focuses on small groups or animal studies, there are some promising papers that suggest medical cannabis could help some patients who have itchy skin. This is because medical cannabis contains active compounds of THC and CBD, which are thought to be able to lessen inflammation and interact with the endocannabinoid system in a way that may reduce the nerve signaling that creates the urge to itch in some individuals. CBD in particular is known for its anti-inflammatory properties. 

If you want to learn more and find out whether you may be eligible for medical cannabis for itchy skin, our medical cannabis eligibility checker is fast and free. 

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FAQs

Stop the cannabis stigma with these useful FAQs. Have a question, reach out to us.
  1. Yes, patients legally prescribed medical cannabis in the UK can drive, provided that they:

    • Are not impaired in any way
    • Can prove that the cannabis medication has been legally prescribed
    • Are taking their prescribed cannabis medication as directed by your specialist consultant 

    The Cannabis Industry Council (CIC) states that as long as the above criteria are met, legally prescribed medical cannabis patients have a legal defence, even if they have over 2μg/L of THC in their blood and are subsequently arrested/charged.
    That said, it is the patient’s responsibility to judge whether they are fit to drive before getting behind the wheel.
    If you like to learn more, head to our medical cannabis and driving guide.

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Learn more about itchy skin and medical cannabis

What causes itchy skin?

There are a range of issues that can cause itchy skin. It’s sometimes as simple as a mild allergic reaction to a new detergent or irritation from a new jumper. However, it’s commonly caused by a long-term issue such as eczema or psoriasis, both of which are characterised as chronic skin conditions. It’s also a symptom of restless legs syndrome and can sometimes be caused by kidney and liver disease, as well as mental health issues including stress and anxiety. 

Please bear in mind that a persistent itch without a rash could point to other causes and should be checked by a medical professional. 

Can medical cannabis help with itching?

Although research is currently limited, there is some promising evidence that medical cannabis could potentially help certain patients manage itching. This is thought to be because of the skin’s endocannabinoid system, which contains receptors that may help to maintain skin balance and regulate some skin functions. For example, inflammation and nerve signalling. It’s possible that medical cannabis could interact with receptors in a way that calms inflammation and quietens the nerve signals that trigger the urge to scratch.  

It’s important to note that a lot of research has been on animals, so more human trials are needed. 

Itchy skin, eczema and psoriasis

Although eczema and psoriasis are both characterised by itchy, inflamed skin, they’re unrelated conditions with different root causes. 

Eczema is caused by a weakened skin barrier and reacts to external factors including the weather, fragrances and fabrics. It usually presents in childhood and patients sometimes grow out of it; it’s estimated that one in five children have eczema, while one in every ten adults have it. With eczema, itching is severe and painful and skin appears as red, inflamed patches. It’s often found behind the knees, in the elbows or on the hands and back. It sometimes leads to sleeplessness or insomnia. 

Psoriasis, on the other hand, is actually classed as an autoimmune disease. Patients have an overactive immune system that makes new cells multiply too quickly and pile up on the surface of the skin. The itching is usually milder than with eczema but it’s often accompanied by burning and cracking. It’s often found on the outer side of the elbows and knees, as well as the scalp and lower back, but it can appear anywhere. It commonly presents itself for the first time in young people between their late teens and early thirties, and older people between the ages of 50 and 60. It can sometimes lead to low confidence and mental health issues. 

Itching that keeps you awake

A severe itch can stop you sleeping and if your itchy skin feels worse at night, there may be a scientific explanation. During the nighttime there’s a dip in anti-inflammatory hormones and body moisture, possibly making the itch feel even worse and leading to further issues, including stress, depression and insomnia.

When to speak to your doctor

Itchy skin isn’t usually anything to worry about. However, if you experience an itch that lasts more than a few weeks, an itch with no rash, an itch with unintended weight loss or yellowing skin, it’s important to seek professional medical advice. 

FAQs

Can CBD be used to treat pruritus?

Pruritus is the medical term for an itch and there’s some promising evidence that CBD might be able to help some patients manage it. CBD is thought to have anti-inflammatory properties, which could ease the irritation that triggers the itch. CBD might also interact with the endocannabinoid system in a way that could soothe irritation and might be able to work with specific nerve receptors that could dampen the itchy feeling. 

However, it’s important to be wary of off-the-shelf CBD products. CBD itself isn’t a controlled drug here in the UK, so the CBD skincare products that you can find in wellness shops haven't undergone the same rigorous testing as the CBD that’s included in certain medical cannabis products.

Does CBD work as an antihistamine?

CBD does not work as an antihistamine because it does not block histamine, which is what the body releases during an allergic reaction. 

There was a preliminary study (carried out on mice and some human cells) that suggested CBD may be able to ease symptoms of mild allergic reactions in some individuals by stabilising mast cells, which are cells in the body that release histamine and cause allergy symptoms. However, more research is needed before we can make any link between CBD and allergies. 

Is medical cannabis prescribed for eczema?

In certain cases, medical cannabis may be prescribed to eligible eczema patients who are suffering from intense itchy skin or other debilitating symptoms. At Releaf, each patient is individually assessed by our team of expert clinicians and only patients who have already tried two traditional treatments will be considered.

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