I got into the bath about 3-4 days ago and by mistake washed vagina with soap. now it itches has white discharge and is very uncomfortable.

Yeast?: A clumpy (cottage cheese- like), white, non- odorous discharge associated w itching, burning, swelling or redness can be due to yeast infections. Yeast can be treated with otc medications. If this doesn't fit the description get med eval.

Might have a yeast : Infection. Try one of the over the counter medications like Monistat and see if that goes not help.