It was narrated from Ibn Abbas that:

The Prophet was treated by means of cupping when he was Ihram.

أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ طَاوُسٍ، وَعَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ ﷺ احْتَجَمَ وَهُوَ مُحْرِمٌ .