You should try using a common itch cream or go see a doctor for serious tratments
Vitamin-C
Iodine
Iodine
Through any opening in the body - eyes, mouth, nose... etc. and through any breaks in the surface of the skin, cuts and scratches. Some of them enter in the food we eat.
Someone is cutting you!
.caused by the microscopic fungus Sporothrix schenckii. The fungus that causes sporotrichosis is found in spagnum moss, soil, and rotting vegetation. The fungus causing sporotrichosis enters the body through scratches or cuts in the skin.
Iodine is commonly used to paint the skin to prevent infection from cuts and scratches due to its antiseptic properties. It helps to kill bacteria on the skin's surface, reducing the risk of infection.
It is important to wash with soap and water when cleaning cuts, scratches, and animal bites because soap kills the germs that live in these wounds. Without the use of soap, there is a far greater chance of infection.
Iodine
A first aid kit should always have an antiseptic for minor cuts and scratches.
Thoroughbreds can be a bit high-strung but I doubt they have a significantly higher rate of scratches and cuts. Make sure he has a safe environment with safe fencing made for horses.
To effectively repair and restore cutting boards or cutting blocks with scratches and cuts, you can sand down the surface to remove imperfections, then apply a food-safe mineral oil or beeswax to condition and protect the wood.