How to treat sunburn injury?

Hi doctor,

I got a very bad sunburn on my left leg about a week ago. I am almost certain it was a second degree even though it did not blister. It was very red and hurted for at least three days. My ankle was swollen for two days as well. I am much worried about it as I am on holiday and did not seek medical advice and also did not wrap it with a bandage. It has healed quite a lot, but now it is starting to scab around the edges and some skin is turning shiny. I am worried about the scarring. I have attached photos for your reference. The white stripe across is where I was wearing a plaster. The area has now become itchy. I just do not know what to do. Please help.