This keeps affected areas clean and prevents the accumulation of debris in the wound. The shoe can be replaced at this point. If the pain can be located, but drainage cannot be established at the white line, then the infection has migrated under the sole away from the white line. Under no circumstances should an opening be created in the sole. Instead, expect your vet to make a small channel in the subsolar tissue leading to the infection.
Antibiotics are optional and based on the needs of the individual horse.
Your veterinarian may prescribe bute or some other medication to ease the discomfort. Farriery is a prime factor. The hoof has a natural ability to provide protection to the sole of the hoof. To prevent gravel, it is important for the foot to be trimmed to preserve a strong healthy foot. Preventive maintenance in dry weather includes a hoof dressing painted on the entire foot to contain moisture.