Hello,
Without examination,confirmation of a diagnosis is tough but it can be perioral dermatitis,angular cheilitis,
eczema or fungal infection. P typically affects the nasolabial folds, perioral area or perioccular area. Eczema is a form of chronic dermatitis (rash).Allergic reaction is one of the important causes of eczema.Angular cheilitis is due to bacterial infection of the corners of mouth.