What should I do since my dog has a rotting skin rash and long white worms?

Take your dog to the vet immediately. Your vet will be able to diagnose the cause of the rash and worms and prescribe the appropriate treatment. Do not attempt to treat your dog's condition at home, as this could make it worse.

Here are some tips for what to do until you can get to the vet:

* Keep your dog's skin clean and dry.

* Apply a cold compress to the rash to help reduce swelling and itching.

* Do not let your dog lick or scratch the rash, as this could cause further infection.

* Give your dog plenty of fresh water to drink.

* Feed your dog a bland diet of boiled chicken and rice.

* Avoid giving your dog any medication or supplements without first talking to your vet.

By following these tips, you can help your dog feel more comfortable and speed up the healing process.