Impetigo

I’ve been getting impetigo since I was a child, so for about thirteen years now. All of the tests have shown that I’m not a carrier of it, but I still get it at least once a month. I have an antibiotic and use a cream during outbreaks, as suggested by doctors. I notice that it occurs during times of excitement and stress, and if I am sick. I’m just so tired of getting it and I don’t know what else I can do to prevent an outbreak. Does anybody have any suggestions or helpful advice, such as a vitamin I can take to help prevent it? I’m desperate. 😭