Heat rash or shingles on face. not painful like shingles but used to have it many of times as a child. want to make sure it's not shingles

Shingles: Not usually something you get repeatedly- perhaps its an allergy or contact dermatitis - shingles is usually wuite painful- please see your dermatologist

Specific location: Shingles are going to be localized to the distribution of a specific nerve root & only on one side of the face.(never crosses the midline) It is often most painful before the spots emerge & rarely happens more than once.I've seen it as early as 15 months but it is unusual before late adulthood. If this happens repeatedly it is likely something else. An exam can confirm or exclude shingles.