Use a pair of tweezers. Try to grab as near to the mouth parts as possible. A quarter-twist on the way appears to improve the chances of fully removing the mouth-parts.
If the dog is irritable/large/potentially dangerous applying a muzzle or similar may be wise, especially if the tick is near the head.
take it to the vet.
to remove a tick from a dog get a pair of tweezers and put them aroun the tick close to the skin and pull, however do not twist or pull too fast as this may leave the head inside and lead to infection, or yo can get anti-tick spray.
take it to the vets
Ticks are not contagious. A dog can only get a tick from another dog if the tick walks onto the other dog.
Your best option is to clearly mark the location of the tick, such as by trimming the hair around the tick, and then taking your dog to a veterinarian. Once the head of the tick is lost in the skin, it will likely take local anesthetic and possibly a bit of surgery to remove it. Trying to remove this at home is probably just going to make the situation worse.
Probably the head of the tick if you didn't remove it correctly. Dump some mineral oil on the tick, [enough to completely cover it] and then gently twist tick counter clockwise while gently tugging tick out. Do not try to sqeeze it out. It will eventually be dislodged by the body's own defences against foreign objects.
It remains on the animal, feeding on the blood of it's host, and possibly infecting the animal with diseases. Ticks are carriers of a number of diseases, some of which are quite serious and even fatal, to the animal and to people.
The scientific name for the American dog tick is Dermacentor Variabilis.
a red tick is a type of coon dog
A tick gets fed but the dog gets killed. so its parasitic.
A sheep dog.
Sheep dog
you don'tANS2:A tick buries into the skin using barbed mouthparts. If you have plucked the body off the dog but the head remained buried in the skin, you may have some success in removing the head by using fine tweezers. Your dog will generally be better off waiting for the head to fester out like a splinter. If you don't see improvement in a couple days you probably should take the dog to a vet to get it attention. To properly remove a tick, you want to avoid anything that will make it regurgitate back into the dog. Squeezing, pulling, heating, most chemicals will all make the tick regurgitate and potentially start a bad infection in the dog.There's a good tick removal trick at the attached link.