Red and swollen legs in the hotel.

It may be that the toilet was infected after use, and it was not cleaned and disinfected in time, so you were also infected by virus or bacteria, which induced itchy skin symptoms. I suggest you go to the hospital dermatology for consultation.

At the same time, I hope you will use the toilet less in the future. If you use the hotel toilet, it is best to use a toilet pad or toilet paper before using it.