Severe recessive dystrophic epidermolysis bullosa (RDEB)

This webpage explains about severe RDEB and how it can be managed.

What is RDEB?

Epidermolysis bullosa (EB) is the name for a group of rare inherited skin disorders that cause the skin to become very fragile and blister at the slightest knock or bump. Severe RDEB is a type of EB.

What causes severe RDEB?

Severe RDEB is a genetic condition. It is caused by a faulty gene (gene mutation) in the COL7A1 gene that affects a protein called Type 7 collagen.

In severe RDEB, this protein is missing, faulty or reduced, so the skin layers separate easily and form blisters.

Severe RDEB is recessively inherited- this means the faulty gene has come from both parents who are just ‘carriers’ but don’t have EB themselves.

On rare occasions the change to the gene can also happen by chance when neither parent is affected. This is called a ‘de novo’ mutation.

How is severe RDEB diagnosed?

Severe RDEB is diagnosed by shaving a sample of skin (shave skin biopsy) and examining it under a microscope. Blood samples are also taken from the child and parents to look for the specific gene changes.

What are the complications of severe RDEB?

Severe RDEB causes widespread blistering and skin loss from birth. Over time excessive blistering leads to extensive scarring of the skin. This can lead to contractures (tightening) of joints and deformities of the hands and feet.

Blisters can develop in the mouth and throat causing tightness (stricture) which can affect eating and drinking. An operation is usually required to stretch the oesophagus when a stricture occurs. The oesophagus is the tube in the body that takes food from the mouth to the stomach.

The eyes can also be affected by blistering which can cause abrasions on the eye.

The nails on the hands and feet are often missing or very thickened.

What are the long-term complications of severe RDEB?

  • Dressing changes can be time consuming and very painful.
  • Children with RDEB can often have anemia and extra nutritional requirements. They may need to take multiple supplements like iron and zinc.
  • Impaired growth and delayed puberty.
  • Osteopenia, osteoporosis and vertebral fractures, caused by reduced mobility and chronic inflammation.
  • Having severe RDEB puts you at a high risk of developing aggressive cutaneous squamous cell carcinoma (SCC). SCC can arise in areas of repeated trauma and chronic wounds and scarring.

Is there a cure for severe RDEB?

There's currently no cure. Treatment aims to relieve symptoms and prevent complications developing.

If I have another child, will they also have severe RDEB?

This will vary and depend on whether you and your partner are carriers of the faulty gene.

In some cases, it is possible to test an unborn baby for EB between the 11th- 13th week of pregnancy. In IVF it is also sometimes possible to test embryos before they are implanted.

Tests may be offered if you or your partner are known to be a carrier of the faulty gene associated with EB and there’s a risk of having a child with a severe type of EB.

How to manage severe RDEB

It’s important to pop blisters to stop them from getting bigger and becoming painful or infected.

  • Use a piece of soft gauze to gently compress the blister from the side to increase tension.
  • Use a small hypodermic sterile needle (or small clean sharp scissors) to pierce the blister.
  • Slide the needle through the blister to create an entry and exit point. If the blister is large, you may need to do this more the once.
  • Withdraw the needle and gently press the blister with the gauze to remove the fluid.
  • Dispose of the needle into a sharps bin.
  • You don’t need to use a dressing if the top of the blister is still in place.
  • Use a dressing is there is skin loss or if the area looks particularly sore.

If blisters are left this can result in further damage or wounds to the surrounding skin.

An image of a blister being popped with a needle

Popping a blister

Apply dressings to open wounds to encourage healing and to prevent wounds from sticking to clothing. Your child’s EB nurse can recommend suitable dressings and show you how to apply them to your child’s wounds.

You can use a non-sting medical adhesive remover if dressings have become stuck to the skin. This will help remove the dressing without causing pain or further damage.

If you are concerned about your child’s wounds, please contact the EB nursing team to discuss the best treatment options.

Infected wounds can be treated with creams and ointments or specialised dressings. However, if your child has a high temperature, you should contact the GP as they may need antibiotics to help treat the infection.

Please ask the GP to take a wound swab before prescribing antibiotics. Wounds should be cleaned with saline or water (not antimicrobial washes) prior to taking a wound swab.

Blisters and wounds can be painful, and each child has different pain management needs.

Please speak with your child’s EB team about how to manage your child’s pain. As well as giving you advice they can refer your child to a specialist pain team if needed.

If your baby has a lot of very fragile skin, you can nurse them on a small soft pillow/ mattress. Your EB nurse can provide this.

To lift your baby from the mattress, apply a ‘roll and lift’ technique:

  1. Roll your baby onto their side.
  2. Place one hand behind their head and one hand under their bottom.
  3. Allow them to roll back onto your flat hands.
  4. Lift.

As you become confident in lifting your baby you may find you don’t need the pillow/ mattress.

To reduce the risk of skin blistering or tearing we also recommend:

  • Try to avoid picking babies and toddlers up by their armpits.
  • Pad areas of the body prone to knocks and friction with dressings when you baby becomes more mobile.
  • Apply dressing to open wounds to help reduce pain and potential infection.

If your child has a lot of damaged skin, we recommend delaying bathing until healing has taken place. This is because bathing can be painful and it’s difficult to protect against further skin damage when all the dressings are removed at once.

Instead, use antimicrobial wipes or wound irrigation fluids to cleanse when the skin is sore. Your EB nurse can also recommend dressings or creams that can help cleanse the skin until a bath is possible.

Tips for bathing:

  • Pre-cut replacement dressings before the bath so they are ready to put on.
  • If needed, give prescribed painkillers before bathing.
  • Add a mild antimicrobial wash to the water instead of commercial baby products. Your GP can prescribe this.
  • Use a towel to line the bath to help prevent skin damage.
  • If your baby has a lot of dressings, sometimes it’s easier to bathe them with their dressings on, then change them after the bath.
  • Pat skin dry with a soft towel rather than rubbing.

Initially dress your baby in a soft cotton baby grow that fastens at the front. They can wear this inside out to stop the seams from rubbing and causing blisters. Watch out for fasteners that may rub.

Older children can wear ordinary clothes if they are easy to put on and take off and don’t rub. Some children prefer clothes which don’t have to go over their head and don’t have prominent seams.

GPs are sometimes able to prescribe specialist clothes such as Skinnies® or Tubifast® that can help keep dressings in place.

  • Don’t use wipes if the nappy area is red or the skin is broken.
  • Cleanse with 50/50 ointment or Emollin® emollient spray. Water can sting blisters and sores.
  • Pop blisters (as above).
  • Apply a layer of barrier cream such to any blistered areas or to any areas that the nappy may rub.
  • Cover any open wounds with cooling type gel dressings. You may also need to line the edges of the nappy with a soft material to prevent rubbing.

Blisters in the mouth can make feeding sore and difficult.

Tips for breastfeeding:

  • Protect your baby’s face with a layer of emollient/barrier ointment to reduce any friction from feeding.

Tips for bottle feeding:

  • A special teat like a Medela special needs feeder can be helpful, as it has a longer, slimmer teat made of ultra-soft silicone.
  • You can apply a teething gel to the bottle teat or directly to the mouth before feeding to help ease pain. Gelclair® (a specialist gel) can also be used around or inside the mouth to help reduces pain.

Tips for eating:

Your child’s EB dietitian can advise on appropriate soft foods and supplements to make sure your child can meet their nutritional needs.

They can also advise on how many calories your child needs to support their growth and health.

Some children may need to have regular blood tests to make sure they aren’t lacking in any vitamins or iron.

If your child’s mouth is sore, then you can use a teething gel or numbing spray before eating. Eat softer or mushy foods when the mouth is sore, drinking through a straw can also help.

If your child starts to have difficulty swallowing, this may be indicative of stricture. Please contact your EB team for further advice.

Constipation is a common problem with all types of EB. Blistering and soreness around the bottom can make it uncomfortable for your child to poo, and pain medicines and iron supplements can also cause constipation.

If you child is constipated, please speak with your child’s EB team who will be able to advise on medicine to help them poo or make pooing more comfortable.

Overtime your child’s mouth opening may become restricted, and their tongue movements may become limited. This can make brushing teeth difficult.

To help we suggest:

  • Brush teeth with a soft toothbrush.
  • Try to avoid very hot or very cold food and drinks.
  • Have regular check-ups with the EB dentist. They may also prescribe fluoride supplements.

Dry eyes caused by a reduced tear film can sometimes cause blistering on the surface of the eyes which can be painful.

An ophthalmologist (eye specialist) can prescribe eye drops or ointment to help keep the eyes moist and reduce the chance of blistering.

If the eye becomes scratched or blistered:

  • Make an appointment to see the ophthalmologist.
  • Use antibiotic eye drops rather than the eye drops or ointment.
  • Give pain-relief if needed.
  • Your child may find it more comfortable to keep their eye closed and avoid bright lights whilst the eye is healing.

Contact us

If you are at all concerned about any skin changes, please contact your EB team as soon as possible.

Where can I get further support?

DEBRA and Cure EB are the national charities that support individuals and families affected by EB.

They provide information, practical help and professional advice, and fund research into the condition. To find out more please visit the DEBRA website and the Cure EB website.

Compiled by:
Epidermolysis bullosa team
Last review date:
August 2025
Ref:
0825CWT0010