I've had two cases this year in Ryelands and one from Mules. Pretty easy to sort, inject 1 ml Pen and Strep or maybe Engemyacin into lid. One case went after a day, the other in Ryeland lamb took much longer and needed 2 ml to sufficiently fill lower lid and roll away lashes. Much easier with a helper to restrain lamb for you. Clips,a stitch or removing a section can also be options if needed.