Is it obligatory for a husband to pay for his wife's medical expenses, just as he is obligated to support her?
If a man pays the costs of his wife's medical treatment, this comes under the description of good companionship and doing good, which Allah has ordered us to observe. Allah (Exalted be He) says:
...and do good. Truly, Allâh loves Al-Muhsinûn (the good-doers).
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.