Anal itching (4years)-Graphic Alert

i tried everything.. diets,pomats, etc. i had anal itching since 2019. and my anus like n eczema. what will i do. i cant solve this problem. my anal area’s colour is red.. my doctors want to be metilien blue injections. but i dont know what should i do

after i poo, its getting worse. if i sleep or no walking its some better.

Canesten Hydrocortisone Athletes Foot cream. Cleared it up immediately. After 6 years of night itching.