What part of the bum
Itching on the skin of the butt (bum) can be due to dryness, sensitive skin, scratchy clothes, sitting on scratchy surfaces, etc.
.. A non-medicated skin cream, Hydrocortisone
1% cream (for just a few days), or another anti-itch cream can help (all over-the-counter). If there is a visible rash
, or if the itch is anal, genital, or in hairy areas, a doctor can give a diagnosis and start treatment.