With the exception of blushing triggered by sudden, strong emotions, facial redness can have several different causes.
Hypersensitive skin
It's a fact: some people's skin is more sensitive than others. There are those whose skin doesn't react when exposed to stimuli such as heat, cold, rubbing, etc. But there are also those whose skin will have a strong reaction. Sensitive skin is usually characterized by three common factors: a weakened skin barrier, redness, and hypersensitive sensory fibers.
Exogenous factors
The environment in which you live may be responsible for red patches appearing on your face. Pollution, sun exposure, smoking, alcohol, an unbalanced diet, etc. They can all irritate the skin and, consequently, lead to redness.
Skin conditions and disorders
Redness is associated with many skin conditions and disorders, such as acne, eczema, and rosacea. In these cases, it's essential to get to the root of the problem and provide an effective treatment tailored to the skin's needs. If you want to use specific skincare products that fight blemishes or redness, it's important to choose them very carefully.