Tomorrow is Red Nose Day day in the UK, where huge numbers of us engage in activities we perhaps normally wouldn’t. In the evening we sit down to watch Comic Relief strike that difficult balance between entertainment, fundraising and awareness-raising. Comic Relief describes #rednoseday as uniting 'the entire nation in trying to make a difference to the lives of thousands of people across Africa and the UK who are facing terrible injustice or living in desperate poverty’. But we all know that the humanitarian crises in East Africa are not just one-day or week-long issues. So how can the momentum and empathy generated by these global charity days be sustained?