my poor baby 2...

we have determined that it is the soil that is causing duke to have an allergic reaction. so we are taking him to the vet again to have his ears looked at for sure. his ears have red bump/bite marks all over! and this morning when i went out to look at him his right ear was bleeding! i got blood on my arm there was that much blood. I am worried about my baby... =( I hope the vet can tell us what's wrong or something to make it go away. My poor baby duke...