Emily Marsden is a full-time carer for her eight-year-old daughter Daisy who was born with Rett Syndrome, a rare genetic condition, that requires round-the-clock specialist nursing care.

Doctors warned Daisy only had weeks to leave.

That was two years ago.

But looking after Daisy at home means that Emily only receives specialist palliative support for her daughter Monday to Friday, between 9am to 5pm.

"I think having to think about the possibility of your child not making it through the night is possibly one of the worst things you're going to have to face, and having to face that without the right support is pretty awful really. It sometimes feels unsustainable," Emily said.

She has asked for more help but has been told there are not enough specialist nurses available.

Jackie Appleton knows exactly how Emily feels. She lost her seven-year-old daughter Amber May in March last year.

Jackie says she only received 24/7 palliative care for her daughter during the last three months of her life.

Amber May was born with CACNA 1A. The rare genetic condition left her needing complex medical care but Jackie says she was made to feel "inadequate" and "greedy" every time she approached her local healthcare provider for help.

She told Sky News she battled for years to access specialist nursing support and this took away quality family time she should have spent with her daughter during her final years.

"I'm a mum of three, I don't have the luxury to look after one child, I have to make sure the whole family is looked after but I was also made to feel as if I was being greedy asking for more, and I was told if I have more care then it's taken away from another family who may need it," Jackie said.

Health workforce researchers warn more families will be left without specialist palliative care unless recruitment is stepped up and existing staff are given more training.

The latest figures show the number of district nurses who can provide palliative care in the community has dropped by two-thirds in the past twenty years. And around 30% of these current staff are not qualified to give end-of-life care.

Alison Leary, chair of healthcare and workforce modelling at London South Bank University said: "I think district nursing is quite undervalued.

"For the first time we've seen district nursing numbers drop to under 4,000 in the country and that's a very serious situation if we're going to provide care in the community."

Emily wants to enjoy every precious moment she has left with Daisy. But that is almost impossible when she does not get the support every mother of a terminally ill child should receive.

Andy Fletcher, chief executive of Together for Short Lives said: "These children can have very complex and unpredictable conditions and often need 24-hour care, seven days a week.

"However, care and support are not always available when families need it most, especially at night and at weekends. This can put huge pressure on already exhausted families.

"We are asking the government to urgently act and address the £300 million funding gap for children's palliative care in England, invest in the workforce and futureproof the lifeline NHS England's grant funding for children's hospices to ensure support is in place to meet the children's complex needs.

"For too long the needs of these children and their families have been overlooked in the planning and development of health and care policy, leading to critical inconsistency of access to support.

"This must change.

"Time is short for these families and access to the right, round-the-clock support is vital to help families make the most of every moment they have together."