The Qalilah

A woman with istihazahqalilah has to change the sanitary napkin or towel and perform wudu' for each and every salat whether it is wajib or mustahab.

In this and the subsequent cases, if the sanitary napkin has not become najis, then it is not necessary to change it.

Adopted from the book : "The Ritual Ablutions for Women (Taharatu N-Nisa')" by : "Sayyid Muhammad Rizvi"