Hello,
Without examination,it is very difficult to confirm a diagnosis but it can be contact dermatitis(allergic or irritant),
eczema(atopic dermatitis) or perioral dermatitis.
Allergic contact dermatitis is an inflammation of the skin caused by an allergy to a substance.In irritant contact dermatitis there is skin irritation, including inflammation, swelling of the area, and warmth. The rash will be confined to the specific area that came into contact with the offending agent.