This video shows how to detect equine ulcers by palpating acupuncture points as a method of detection. A horse can go from having no gastric irritation to having ulcers in as little as 5 days. Dr. DePaolo’s easy do-it-yourself method of palpating acupuncture points can be a great indication of the presence of painful and debilitating ulcers.
I believe it is also important to look into what caused these ulcers in the first place. Once you know the root cause, you can work to avoid another occurrence.
Here are a couple other examples showing how horses react before treatment.