One of my ewes came in after lambing on Wednesday with what looked like a cyst on the back of her head, had a look at it last night when I was feeding and it had burst with thick pus coming out , squeezed as much out as I could and then sprayed with blue spray. Is there anything else that I should do. She is the mum of triplets, I have put them out for the first time today as they were pretty small but she is not joining the others and keeping them lying at the gate back through to the stables. She is eating ok but doesn't seem as happy and relaxed as the others. I know that sounds a bit silly but she is just not herself, could it just be because I kept her in for so long?