I have an irraction on my bikini line. It is pink and it burns. I don't always get it but when I do it is hard to even sit down. Or to walk.?

Hard to say. There are many reasons for this. Be seen, so you can be checked for infections or other abnormality.
Bikini line rash. Bikini line rashes are common women issues. It can be caused due to sweat, waxing or shaving the sensitive bikini line. Wearing tight pants builds moisture in the inner thighs therefore leading to skin rashes. Continuous rubbing of the moist inner thighs also leads to skin rashes in the bikini line. Vytone cream is helpful because it treats yeast, bacteria, and inflammation and redness.