While in menses, I used to comb the hair of Messenger of Allah ﷺ .  

كُنْتُ أُرَجِّلُ رَأْسَ رَسُولِ اللَّهِ ﷺ وَأَنَا حَائِضٌ  

A person asked me, "Can a woman in menses serve me? And can a Junub woman come close to me?" I replied, "All this is easy for me. All of them can serve me, and there is no harm for any other person to do the same. ʿAisha told me that she used to comb the hair of Messenger of Allah ﷺ while she was in her menses, and he was in Iʿtikaf (in the mosque). He would bring his head near her in her room and she would comb his hair, while she used to be in her menses."  

أَنَّهُ سُئِلَ أَتَخْدُمُنِي الْحَائِضُ أَوْ تَدْنُو مِنِّي الْمَرْأَةُ وَهْىَ جُنُبٌ فَقَالَ عُرْوَةُ كُلُّ ذَلِكَ عَلَىَّ هَيِّنٌ وَكُلُّ ذَلِكَ تَخْدُمُنِي وَلَيْسَ عَلَى أَحَدٍ فِي ذَلِكَ بَأْسٌ أَخْبَرَتْنِي عَائِشَةُ أَنَّهَا كَانَتْ تُرَجِّلُ تَعْنِي رَأْسَ رَسُولِ اللَّهِ ﷺ وَهِيَ حَائِضٌ وَرَسُولُ اللَّهِ ﷺ حِينَئِذٍ مُجَاوِرٌ فِي الْمَسْجِدِ يُدْنِي لَهَا رَأْسَهُ وَهْىَ فِي حُجْرَتِهَا فَتُرَجِّلُهُ وَهْىَ حَائِضٌ