Yes, yourr doing the right thing treatment wise. The crovect will not need re applying unless ther is a lot of rain fall imho Make sure you ve treated around the wound too, n across shoulder, just in case there s been any sneaky ones get away. And also this will act as a preventative at the edge of the wound. The engymycin great, the ab action will help against secondary. We would jab if there is evidence of infection only, otherwise would just keep sprayed and observed. If she s bright and eating that s great. If you ve got other sheep un sprayed get em all done, if you got one wi it , ther may be others, I say is the rule of thumb. We got three, sprayed that day, well bar two set of pantaloons to dag. that i could nt do on day one as my hands were about to fall off but then we can breathe.....