How to detect if a player is already "Frozen"?

If a player is hit by a projectile they'll become frozen, but if hit again, another block will spawn. Is there a way I can check if the player is already frozen so another block won't spawn? I've been googling for hours and I just cannot find anything. Here's the code:

script.Parent.Touched:connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") ~= nil then
		script.Disabled = true
		local torso = hit.Parent:FindFirstChild("HumanoidRootPart")
		local frozen = Instance.new("Part")
		frozen.Name = "IceCube"
		frozen.Size = Vector3.new(6,8,6)
		frozen.Material = "Ice"
		frozen.BrickColor = BrickColor.new("Pastel Blue")
		frozen.Transparency = "0.3"
		frozen.Anchored = false
		frozen.Parent = torso
		local weld = Instance.new("Weld")
		weld.Parent = frozen
		weld.Part0 = frozen
		weld.Part1 = torso
		hit.Parent.HumanoidRootPart.Anchored = true
		for i = 1, 10 do
			hit.Parent.Humanoid.Health = hit.Parent.Humanoid.Health -3
			wait(0.2)
		end
		hit.Parent.HumanoidRootPart.Anchored = false
		frozen:Remove()
		script:Remove()
	end
	wait(0.025)
end)

This one sounds easy enough, you add a part named "IceCube" to them once you freeze them, so check if they have it already!

--NOTE: Pseudocode, homework for OP!
--...
local Connection
Connection=Part.Touched:connect(function(Part)
	if hit.Parent:FindFirstChild("Humanoid") then
		if hit.Parent:FindFirstChild("IceCube",true) then --Already frozen! (Search recursively)
			-...
		else --Not yet!
			-...
		end
	end
	Connection:Disconnect() --Make sure this one projectile doesn't hit them *twice*!
end)