After a month + of the hydroxyzine, there really has not been much of a change. The hives are still there. My vet has recommended getting allergy testing thru Nextmune and depending on the results allergy shots would be next. She said she has clients that this has helped, she told me allergies just get worse to the point of the horse being absolutely miserable. I do not want to waste money but I don’t want my horse itching any worse than he already is. The vet said this will spread from his neck/man to the rest of his body. Does anyone have experience with allergy shots for horses? Any experience with this company Nextmune? I have looked at their website but am having trouble finding any reviews that are not associated with their website.