Allergies and irritation caused by cosmetics
These occur either because the user has a sensitivity to certain ingredients in the product or because the cosmetics were used in properly-an emollient cream applied to oily skin, for example, or an astringent to dry skin, allergic rashes can lead to Blotching.
Treatment of allergies and irritation caused by cosmetics
Stop using the product immediately. Wait 48 hours if the irritation continues, consult a Dermatologist
Note: if your cosmetic reaction is an allergic one, the skin will react within an hour of contact with the offending substance. But if the problem takes longer to appear, it’s probably a reaction to the poor quality product.