Is your eczema really scabies? Here’s how to tell amid surge in cases in care homes and student halls



When raised, itchy red bumps appeared between his thumb and fingers, Benjo Aptroot knew immediately that it was scabies.

‘It looked like eczema, but I knew it was scabies because a friend I saw a lot at college had been diagnosed the day before, and I’d seen her rash,’ says Benjo, 21, a university student who lives in North London.

‘Although my friend had it for a few months, she’d been misdiagnosed with ingrown hairs, and I didn’t panic as I thought it would be something I could treat easily and quickly.’

In fact, the problem is tricky to treat and outbreaks are more common in group-living situations such as care homes, nurseries and university halls of residence.

When raised, itchy red bumps appeared between his thumb and fingers, Benjo Aptroot (pictured) knew immediately that it was scabies

Scabies is an itchy skin condition caused by a burrowing parasitic mite, Sarcoptes scabiei. Having not been a major problem in the UK for decades, cases are now soaring, with a survey in December by the British Association of Dermatologists revealing that nine in ten of those surveyed have seen an increase in cases, and eight in ten reported shortages of the two main treatments, permethrin and malathion.

Separately, GPs have seen a growing rate of scabies cases, with three cases per 100,000 population at the end of the November, double the seasonal average — and medication shortages have made the situation worse (see box), according to the Royal College of GPs.

READ MORE: Experts urge ministers to order NHS bosses to stock up on a controversial horse deworming tablet to halt a ‘nightmare’ outbreak of scabies 

The mites, which are not visible to the naked eye, burrow into the skin and lay eggs, which then hatch. The mites and their faeces cause a rash and intense itchiness, which typically starts four to eight weeks after contact with someone who has been infected.

Scratching the itch can lead to bacterial skin infections such as impetigo, and even sepsis if the body overreacts to the infection.

Typical symptoms include red bumps or scabs, and little red marks and pustules often on the webbed skin between the fingers, around the wrist, under the breasts, around the waist and in the groin area, as these areas are warmer.

But the rash can also be widespread and may easily be misdiagnosed by doctors, says Dr Mia Jing Gao, a consultant dermatologist at the Royal Free Hospital and the private Cadogan Clinic in London.

She adds: ‘I recently saw a young man with a widespread dry rash all over his body and it didn’t initially look like scabies at all. It’s quite common for it not to look that distinctive and you can mistake it for eczema.

‘You have to check for burrows and tracks, which can be white, grey or skin-coloured.’

She says her scabies patients come from all walks of life. The infection spreads by direct skin-to-skin contact and sometimes by sharing towels, or contact with infected clothing or bedding.

Those affected have an average of a dozen adult mites on their skin. The female burrows into the outer layers of the skin and lives ten to 14 days, laying up to 180 eggs. These hatch within three days and become adult mites within four to seven days after that — and the cycle is repeated.

The mites, which are not visible to the naked eye, burrow into the skin and lay eggs, which then hatch
Scratching the itch can lead to bacterial skin infections such as impetigo, and even sepsis if the body overreacts to the infection. Pictured: Human skin with scabies

The recommended treatment is a cream containing permethrin, an insecticide that kills larvae, nymphs (immature mites), adult mites and eggs by affecting nerve and muscle function; or with malathion lotion, also an insecticide, which blocks an enzyme essential for the mite’s growth and survival. Pharmacy-only products, you can buy them when you speak to the pharmacist. Both are left on for eight to 12 hours before being washed off.

If they have not worked, an oral treatment called ivermectin, which paralyses the mites, has recently been licensed for scabies. Permethrin and malathion cost around £15 per tube; ivermectin costs much more — £116 for a four-tablet dose.

‘On the NHS you just pay the prescription charge for ivermectin, but I prescribed it privately to one patient recently and a pharmacy tried to charge more than £1,000,’ says Dr Jing Gao.

After reading up about scabies on the NHS website, Benjo bought permethrin from a pharmacist. He washed all his clothes, towels and bedlinen at 60c, as recommended, and stored the rest of his clothes in sealed plastic bags for three days. The parasites can’t survive long without a human host.

‘I applied the cream as directed and then reapplied it again after seven days and made sure I didn’t touch or hug anyone in the meantime,’ he recalls, three months on.

‘It was still embarrassing, though, as I had to tell the six people living in my aunt’s house, where I’m staying, and they all had to do the same — although, luckily, no one else has caught them. There’s still stigma around having scabies. When I tell some people, they look like they can’t believe I’ve left the house.’

Even after the second treatment, his rash was spreading up both arms. ‘Every time I looked, it seemed to have spread a few centimetres further. It was quite creepy. There were red spots and burrow-like tracks,’ says Benjo. ‘It wasn’t that itchy during the day but became intensely itchy at night [because the skin is warmer].

Despite the treatment, it spread pretty quickly from my armpits, down the side of my torso, across my belly and down to my legs, covering most of my body.

‘At night, I scratched my skin so much I had quite deep cuts, which were really painful.

‘At college, it was pretty hard, too. I stayed off until I’d done both treatments, and when I went back I couldn’t touch anyone or hug my friends — I had to keep my distance.’

Benjo applied the cream for the third time the next week, in mid-November, but with no improvement still, he saw a doctor in A&E. ‘When I told them I’d had my symptoms for almost a month, they prescribed ivermectin. At first, I thought it had worked as the rash seemed to go. But two weeks later I spotted it on my forearms again. I couldn’t believe it.’

By this time, Benjo was back at his family home in Devon for Christmas but he managed to get a repeat prescription of ivermectin from his GP.

‘Both permethrin and malathion treatments are effective, but they involve not washing even your hands for eight hours after you’ve applied it and avoiding close contact with other people,’ says Dr Jing Gao.

Reinfection is quite common.

‘The whole household needs to be treated at the same time, with the instructions followed to the letter to avoid the risk of reinfection. So compliance can be difficult, especially if people don’t have symptoms as they might not want to bother; and sometimes people don’t inform their contacts, so they can get reinfected.’

It has now been more than three weeks since Benjo was prescribed ivermectin and he still has the rash. He’s now started on benzyl benzoate, ‘which a specialist recommended to my friend. I have bought it online. It acts by destroying the mites’ immune systems,’ he says. ‘I’m lucky my skin hasn’t become infected, but it’s still a real pain having to cope with all the itching and not being able to touch or hug anyone.’

Crusted scabies, a more severe and rare form, mainly affects people with weaker immune systems, such as those on immunosuppressants or older people in care homes or hospital wards.

In these cases, hundreds of mites might be living on the skin, so it’s more contagious and causes a more severe rash with a crust.

Poppy Jones, 20, a student in Manchester, had six months of her first year at university blighted by crusted scabies last January.

She had to isolate from friends but, unfortunately, infected her mum and developed skin infections. ‘It made me so anxious and knocked my confidence at a time when I was trying to make new friends,’ Poppy says.

Her symptoms were first misdiagnosed as infected eczema and she was given steroids and antibiotics: not only did the mites continue to multiply but her immune system was weakened by the steroids.

Poppy believes that she caught scabies after being hospitalised on holiday in Vienna in late 2022 for an allergic reaction. ‘Red bumps started to appear in my groin area and spread all over my body. I was itching all the time — it drove me mad at night and really affected my mental health,’ she says.

 

The outbreak of scabies, which makes skin itchy, has led to calls for NHS bosses to stock up on controversial horse deworming tablet ivermectin

‘Eventually, at the end of February, my mum paid for me to see a dermatologist after the GP treatments didn’t work. By that stage, the spots were infected.

‘I was diagnosed with crusted scabies. I was absolutely horrified as I’m such a clean person, but the dermatologist explained it’s nothing to do with being dirty.

‘Scratching the spots had infected them and I had impetigo.’

As well as antibiotics for this, Poppy was prescribed permethrin. ‘But it was out of stock in a lot of places — I had to go to four pharmacies before I could get it.’

‘I had to tell my friends at uni, and they all had to get treated. I had to wash my bedlinen and clothes every day, but the machines at the uni launderette only went up to 40c, so I had to go to another launderette in a cab.’

The dermatologist eventually prescribed ivermectin tablets, but it cost £420 for two treatments with a private prescription.

‘Mum paid for the first as we were so desperate,’ says Poppy, ‘but my GP at home then said if we had a letter from a dermatologist confirming it was crusted scabies, he could prescribe it off label for both me and my mum, who’d caught it a second time from me.’

‘I was so badly affected by it all I came home from uni but I wasn’t allowed even to sit on the sofa,’ Poppy recalls.

After four courses of ivermectin, she was finally clear. She says: ‘It dominated my life for six months. I don’t think people realise how hard it is to get rid of.’

DRUG SHORTAGES LED TO SURGE IN SCABIES CASES

Shortages of scabies treatments are contributing to a surge in cases, writes Poppy AtkinsonGibson.

There is particular concern about the problem spreading in care homes, university halls of residence and other communal living facilities, Professor Mabs Chowdhury, president of the British Association of Dermatologists, has warned.

The condition can be treated with over-the-counter insecticide creams containing permethrin and malathion, alongside hydrocortisone creams to ease the itch.

However, increased patient demand and manufacturing difficulties led to a shortage. ‘This may have caused an exponential increase in scabies cases if people couldn’t get treatment and infected others,’ says dermatologist Dr Mia Jing Gao.

Another problem is that patients ‘could be trying to find remedies for itching rather than getting treated for the mites themselves’, adds Dr Jonathan Silcock, an associate professor in pharmacy practice at Bradford University. ‘As a result, the infection spreads because people are not being treated with the right thing.’

Dr Jing Gao says cases have been increasing since the end of lockdowns — ‘it may be that people are just living their lives to the full again and coming into contact with more people’. Another factor is that ‘scabies mites are spread by everyone being huddled together indoors,’ explains Thorrun Govind, former chair of the Royal Pharmaceutical Society. ‘If you caught scabies with all the mixing at Christmas and New Year it could take four to eight weeks for any symptoms.’

The anti-itch creams shortage is expected to last until April; insecticide creams are reportedly back in stock.

Reference

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