Inverse pityriasis rosea usually causes a rash on the armpits, groin, neck, or face. The rash may clear up on its own, and medications such as antihistamines can help with itching. Inverse ...

They can be hard bumps or flat patches. Possible causes include milia, pityriasis alba, vitiligo, and more. Many people experience white spots on their face at some point during their lives.

White spots on the skin can be caused by sun exposure or conditions including milia, vitiligo, or pityriasis alba. The spots appear when there is a loss of skin pigment or from trapped skin cells.