Narrated Ibn `Abbas: The Prophet (ﷺ) was cupped on his head for an ailment he was suffering from while he was in a state of Ihram. at a water place called Lahl Jamal. Ibn `Abbas further said: Allah s Apostle was cupped on his head for unilateral headache while he was in a state of Ihram .
Source: sunnah.com
Other translations
Arabic
حَدَّثَنِي مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا ابْنُ أَبِي عَدِيٍّ، عَنْ هِشَامٍ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، احْتَجَمَ النَّبِيُّ صلى الله عليه وسلم فِي رَأْسِهِ وَهْوَ مُحْرِمٌ مِنْ وَجَعٍ كَانَ بِهِ بِمَاءٍ يُقَالُ لَهُ لَحْىُ جَمَلٍ. وَقَالَ مُحَمَّدُ بْنُ سَوَاءٍ أَخْبَرَنَا هِشَامٌ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم احْتَجَمَ وَهْوَ مُحْرِمٌ فِي رَأْسِهِ مِنْ شَقِيقَةٍ كَانَتْ بِهِ.
sunnah.com