There is no evidence to indicate that taking off leather slippers or socks that have been wiped over invalidates Wudu. If you wish to wipe over the socks again after breaking Wudu, you must perform a complete wudu, including washing your feet, before putting the socks back on.

If you have a wound and you want to make Wudu, there is nothing wrong with you leaving the bandage on; rather you have to leave it on because it is in your interests. You can wipe over the outside of it when you wash the part of your hand that is not covered.

Wiping over sheer compression stockings is not permissible according to most scholars unless they are worn for medical reasons. In such cases, a person may wipe over them entirely as they would a cast. Alternatively, they may wear thick socks over them and wipe the outer layer during Wudu.