How to fix Player still getting damaged by a tool on my touch function?

When I use my tool it continues dmg to whomever it touches. Uhh how do I fix this?

clientscript:

local UIS = game:GetService("UserInputService")

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local humanoid = char:WaitForChild("Humanoid")

local CD = false

local remote = game.ReplicatedStorage.SwordDmg

local tool = script.Parent


local combo = 1

local slash = script.Parent.slash

tool.Activated:Connect(function()
	
	local function dmg ()
		tool.sward.Touched:Connect(function(hit)
			local enemy = hit.Parent
			local EnemyHum = enemy:FindFirstChild("Humanoid")
			if not EnemyHum then return end
			if CD == false then			
				remote:FireServer(EnemyHum, combo)
			end
		end)
	end
	
	local anim1 = humanoid:LoadAnimation(script:WaitForChild("anim1"))
	local anim2 = humanoid:LoadAnimation(script:WaitForChild("anim2"))
	local anim3 = humanoid:LoadAnimation(script:WaitForChild("anim3"))	

	if CD == false then
		CD = true
		
		if combo == 1 then
			anim1:Play()
			dmg()
			combo = 2
			slash:Play()
		elseif combo == 2 then
			anim2:Play()
			dmg()
			combo = 3
			slash:Play()
		elseif combo == 3 then
			anim3:Play()
			dmg()
			combo = 1
			slash:Play()
		end
				
		wait(0.3)
		CD = false
	end
end)

serverscript:

local remote = game.ReplicatedStorage.SwordDmg

remote.OnServerEvent:Connect(function(plr, EnemyHum, combo)
	print("sent")
	local PlrDB = {}

	local hasBeenHit = false

	for i,v in pairs(PlrDB) do -- go through all the players that have been hit, where 'v' is a member in the table/array/dictionary and 'i' is their number in the table. hopefully you already knew this
		if v == EnemyHum.Parent then -- check if a player that has been hit is the player the part has touched
			hasBeenHit = true -- disable
		end
	end

	if hasBeenHit == false then
		if combo == 1 then
			EnemyHum.Parent.Humanoid:TakeDamage(5)
			print(combo)
		elseif combo == 2 then
			EnemyHum.Parent.Humanoid:TakeDamage(7)
			print(combo)
		elseif combo == 3 then
			print(combo)
			EnemyHum.Parent.Humanoid:TakeDamage(10)
			EnemyHum.Parent.HumanoidRootPart.Anchored = true
			wait(0.7)
			EnemyHum.Parent.HumanoidRootPart.Anchored = false
		end
		table.insert(PlrDB,EnemyHum.Parent)-- insert to table so it can't be hit again
	end
		
end)

You have to check if the enemy char isn't the player's own char

local function dmg ()
        tool.sward.Touched:Connect(function(hit)
            local enemy = hit.Parent

            if enemy == char then return end

            local EnemyHum = enemy:FindFirstChild("Humanoid")
            if not EnemyHum then return end
            if CD == false then         
                remote:FireServer(EnemyHum, combo)
            end
        end)
    end

If you want to control when it can hurt the player, simply use variables. Make a bool value and put it somewhere and name it something that let's it know it belongs to the specific tool, put it IN the tool that's fine. When you want it to hurt players, turn it to true, if not, aka, when it's done, make it false. Then make the script only damage the player if they touch the object AND the value is true. I would do this and make separate scripts so they don't stack.

But you don't gotta do this.

You could, if you just want to use that function, as said, you must disconnect it afterwards, something like this:

connection = nil

Tool.activated:Connect(function()

     function name()

          connection = sword.Touched:Connect(function()end)

     end

     Blabla bla
     name()

end)

Tool.deactivated:Connect(function()

     if not (connection == nil) then -- this means the connection exists, this is so it doesn't error by trying to delete it even if it doesn't exist

connection:Disconnect() -- disconnects it, so it doesn't do whatever is inside anymore, which was a problem that causes stacking, which is running multiple of the same code unintentionally 
connection = nil

end

end)

I hope this helps :3