Emma Wileman, from Telscombe Cliffs near Brighton, set up the charity Haydn's Wish to research and highlight the link between allergies and asthma in children.
Her son Haydn's life was cut short at the age of just nine - due to an undiagnosed allergy to peanuts. She's now been nominated for a Pride of Britain award.
Andy Dickenson reports and speaks to Emma, Dr Somnath Mukhopadhyay of Royal Alexander Children's Hospital, and we also hear from Dr Hilary Jones.
Now, the clock is ticking, with the deadline looming for this year's Pride of Britain Awards. Applications HAVE to be submitted by Friday August 15 at 11.59 pm. So you don't have long.
One of the awards at this year's events is ITV's award for fundraiser of the year. We're looking for that person who goes that little bit further than others - but rarely receives the recognition they deserve. Sarah Cooper reports.
Video. This week, we are trying to find the ITV News' most worthy Local Hero, as part of the Daily Mirror Pride of Britain awards. We will have four nominees, put forward by you, with the winner going to a star-studded event in London.
We start with a woman who has put her own problems behind her to help others. Eleanor Caldon suffers from Bipolar Disorder, but that has not stopped her setting up the Mustard Seed Singers, a choir to help people with mental health issues. Ruje Yasmin reports.
VIDEO: A charity from our region has won a special recognition at the Pride of Britain awards. Here is a clip from Tuesday's programme.
Jim Cook is our fourth - and final nominee for a Daily Mirror Pride of Britain award, and our search for a local ITV hero.
Jim Cook from Hampshire is a former addict who's managed to turn his life around - and has also helped many others.
He's done it through football, providing a focus and a purpose, for those struggling to manage. Rachel Hepworth went to meet him, and his team, on the training pitch.
Fiona Godfrey is the latest of our nominees for a Daily Mirror Pride of Britain award - and our search for an ITV local hero.
She's an incredible woman. Fiona and her fellow volunteers run special 'memory' classes for elderly patients with dementia.
For the people they help, it's a chance to talk about the old times - and a way of tackling the confusion of dementia. Sarah Saunders reports.
Graham Cridland is the second of our nominees for the Daily Mirror Pride of Britain awards, and our search for a local hero.
He gives up his spare time helping young people with learning difficulties and behavioural problems.
And how does he do it? Well as Charlotte Wilkins explains, Graham, from West Sussex, gets them hooked on fishing.
She's been described as an angel on earth, and for almost quarter of a century she's devoted her life to feeding the homeless.
Ma Smith leads a team of volunteers at a soup kitchen in Oxford, but what she offers is much more than just a meal.
She's one of our four nominees for a Pride of Britain Award who we'll be featuring this week. Rachel Hepworth has Ma Smith's story.