What mind be the causes of itchy skin spots?

Itchy Spots: If the spots appear on a person's face, neck, or trunk the culprit may be acne. Itchy spots that show up on someone's hands or feet may indicate either eczema or psoriasis, or allergy. If itchy spots occur on skin in the genital area, they may be caused by molluscum, lichen planus, scabies, or pubic hair lice. On the scalp, itchy spots may be seborrheic dermatitis or allergy. Medications can itch.

Many possible: conditions could cause itchy skin spots. These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis.