u seem to have an allergic contact dermatitis
becoz of either dettol
or betadiene..does it itch / burn...what else have u been applying? did u experience such symptoms earlier with application of either betadiene or dettol? it wil be worthwhile if u cud send ur pics on firstname.lastname@example.org for a precise diagnosis.
till then t allegra
180 mg once a day for itching and fucibet cream for local application twice a day wud help