The former Emmerdale star, who played Zoe Tate in the soap from 1989 to 2006, has been living with incurable lung cancer since discovering her illness two years ago.
And the soap star recently spoke out on how she feels about using cannabis for medicinal use.
In a Facebook post, she wrote: “That it almost takes the life of a 12-year-old boy to force the government to address the issue of legalising medical cannabis says more about common sense than compassion.
“The medical use of cannabis for sufferers of epilepsy, MS and cancer can alleviate suffering, pain, discomfort and in many cases is saving and extending lives and bringing quality of life where there has been none.”
She also addressed an interview by Jeremy Corbyn who said he agreed with its use.
Leah penned: “Thank you Jeremy Corbyn. Where people’s health is in question can we please begin to re-educate attitudes around the immense healing properties of this plant, and remember that it was considered to be a medicine long before it was used recreationally. #livinginhope.”
Shortly after her post, it was announced cannabis-derived medicinal products will be available by the autumn.
It will be made available on prescription after it was approved for use by the government.
The Home Secretary, Sajid Javid, said: “Recent cases involving sick children made it clear to me that our position on cannabis-related medicinal products was not satisfactory.
“Following advice from two sets of independent advisors, I have taken the decision to reschedule cannabis-derived medicinal products – meaning they will be available on prescription.
“This will help patients with an exceptional clinical need.”
Meanwhile, since Leah was diagnosed with stage four cancer, she has been updating her fans on her journey via her blog, Something Beginning With C.
In her latest post shared in June, the actress went into detail on one particular hospital visit, saying she likes a “challenge”.
Leah praised the medical staff as she had “another litre of fluid” drained from her lungs.
She admitted “there’s more yet to come” in her honest post, which detailed the 40-minute treatment followed by the recovery period.
Talking about one of her nurses, the star wrote: “Eric turns the monitor so I can monitor myself.
“My oxygen sats read 92, I know they won’t want to let me go until they each around 98. Eric remembers I like a challenge!”(sic)
Leah went on to say that it was then that her lungs re-inflated for “the first time in weeks” as she tried to get her oxygen levels up.
The ITV star’s cancer was missed by four GPs who she saw over 10 days before being admitted to A&E.
It was there she discovered she had stage 4 lung cancer.