For some reason I cannot get a new line if I hit return so please bear with me. I treated my cat this month with Bravecto 500mg for fleas and ticks which I bought from the vet. He is a big cat, 7.5kg so needs the top dose and he has had it before. He immediately dashed outside and spent the rest of the day outside in the heat and sunshine keeping his distance from me. That is not unusual for him. He is a very timid cat, was treated very badly as a kitten so he doesn't like change. Just getting him in a cage and driving 30 minutes to the vet would traumatise him horribly so I haven't done it. He wouldn't allow himself to be examined. What I noticed the next day when he came near me again was that where I had applied the treatment, most of his fur had fallen out and his skin looked a bit pink. It has since calmed down but feels a bit rough. I wonder if the treatment made his skin sensitive and he got sunburn. Has anyone any experience of this? I am going to speak to the vet and show them the photo that I took but I suspect they will ask me to bring him in. They tend to want the fees. He will not cope with the journey. He is around 12 years old. I hope this all makes sense. Any thoughts would be appreciated.