Welcome to health care magic.
is a normal secretion from your tyson's gland. You need not take any medicines or creams for it. You mentioned that it is ok for a day when you wash it. Just like how you take daily bath, make it a routine to retract the prepucial skin and clean the glans penis
off the smegma with only your finger and running water. No need for soap also.
will help but a surgery for a normal condition which can be tackled by daily cleansing is unwarranted.
Hope this helped