I have sinus problem and keep suffering from frequent flu and cold. The problem worsens and my condition further deteriorates whenever I take a ghusl (that is when I wash my hair while taking ghusl). So I would like to know that whenever there is a fear of my health getting affected, can I just do masah on my hair while doing ghusl-e-janabat or any other obligatory ghusl?
If water, whether cold or hot, is harmful to you, and a reliable physician has prohibited you from using water then you may make Masah without washing your hair in an obligatory Ghusl.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai