Please bear with me as this is a bit complex. Last week Ollie went to the vet because he was off his food. He had a slight temperature and was given an antibiotic injection plus 10 days supply of antibiotic pills. I started he pills on Saturday as instructed. That same day, I Frontline's all 3 cats because they were overdue and, I had already found ticks on their coats. Today, when grooming Ollie, I was horrified to see that he has a complete bald patch on the Frontline site and the skin is very inflamed and angry looking. Ollie does not actually seemed bothered. To add to the confusion, there are patches of blood on the patio outside - Baz cut his paw on Saturday but, I have checked, and there is no sign that it has reopened. So, is it possible that the blood is from Ollie? There is none on his collar though. Or, maybe there is a strange cat around and there was a fight!?? I admit that I should not haver Frontlined Ollie when he was unwell but, he has had the treatment before with no adverse reaction and, I'm very concerned about ticks. Could it have been a bad reaction because of the antibiotics? Obviously I will be reluctant to reapply it in future but, there are so many ticks around, not protecting him is not an option. Ollie has begun to eat again and he seems to have more energy so let's hope that his original problem is on the mend.