a clear discharge from where? i can think of several different openings depending which sex that you are that could be involved. detergents (or scented body wash in your case) can cause a contact dermatitis - a skin condition that can itch become inflammed or possibly tingle. without a bit more information or the having a medical provider examine you this would only be a guess. loose the undies. take a very thorough shower. and wait and see if those affected body parts will recover spontaneously.
help i washed a pair of underware in heavy scented bodywash i now have tingling and clear discharge