Hi I am suffering from shingles, I got this one day ago, very painful?

Hi I am suffering from shingles, I got this one day ago, very painful. This is first time in my life. I got chicken pox in my childhood. What kind of soothing cream good for shingles? How often I can take showe? What kind of food I can eat? How long it will be take for recover. Very painful, I can’t sleep. Please reply my questions doctor.

Thank you