The British surgeon has spent more than two decades working in conflict areas across the world.
All proceeds from the Humble Freedom Bundle go to charity.
The Médecins Sans Frontières facility in Jordan is providing much needed care to people in the region.
"We will see, I think, a famine unlike any we have ever seen anywhere," United Nations Assistant Secretary-General Toby Lanzer said in Brussels last week.
Aid workers are entering for the first time areas in Nigeria once held by the terrorist militia, and finding nearly a million people in desperate conditions.
Saudi-led coalition aircraft attacked a Médecins Sans Frontières-supported hospital in northern Hajja province in Yemen on Monday, killing at least seven people and wounding 13.
The attack occurred after the Pentagon announced that it was selling $1.15 billion in weapons to Saudi Arabia and $750 million in guided aerial munitions to the UAE, both of which are taking part in the air war in Yemen.
Syrian rebels cut the main supply route to the part of the city held by the regime, and Assad's army is fighting back hard.
The latest figures from the International Organization for Migration show that 2,977 people have died so far in 2016, with around 20 migrants dying each day since March.
Humanitarian workers discovered 24,000 people sheltering in a makeshift camp in a former militant stronghold, with more than 1,200 dead and hundreds of starving children.