How to make a healing tool heal on touch?

So, I have been trying to add a medic class into my roblox game. I decided that it would need a tool that would be able to heal teammates. I made the tool, (the entire tool is all in the part "Handle"). I put this script into my tool hoping it would make the tool heal any humanoid that touched the part. Here is the script:

local debounce = false
game.Players.LocalPlayer.Backpack.Healing.Handle.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
		if not debounce then
			debounce = true
				while hit.Parent.Humanoid.Health <100 do
					hit.Parent.Humanoid.Health = hit.Parent.Humanoid.Heath + 25
					wait(5)
				end
				wait(5)
				debounce=false
		end
	end
end)

Personally, I am a new scripter and I think the proble may be about how I defined the tool. It all seemed right though.

The tool is called: Healing. The handle is called: Handle

Please tell me how to fix this code, Thanks!