Some faces turn red due to drastic temperature changes. However, others take on a red hue in the face and over the arms, hands and feet due to more serious skin conditions.
The most common reason for red skin is sun burn. After being exposed to harmful UVA and UVB rays the skin can burn as it becomes parched, scorched and tender to the touch. Acne-prone skin can also appear red in color due to a breakout, or even worse, due to painful cystic acne. Sensitive skin with a thin, fine texture will also become red rapidly during the winter time, when cold, dry wind whisks up a windburn. The most severe red skin is caused by skin disorders such as eczema or allergic irritations.
A relatively common but misunderstood medical condition known as rosacea can also cause red skin. People between the ages of 30 and 60 are especially prone to it, and its hallmark symptom is the seemingly random flare-up of glowing red facial skin, especially in the cheeks. Researchers believe that it is caused by the overproduction of two separate skin proteins that cause inflammation, which in turn results in excessive amounts of a third protein that causes the red skin symptoms. These proteins, called "anti-microbial peptides," are part of your body's natural immune system. Because antibiotics can inhibit the activity of these anti-microbial peptides, they are frequently prescribed to people with rosacea to help reduce the appearance of red skin.
If your skin ever turns red, and especially if it's accompanied by itching, scaling, blisters and inflammation, visit your doctor as soon as possible. If you suspect a skin disorder, don't scratch or apply home remedies to inflamed skin without first seeking the advice of a doctor or medical professional. You could well end up doing more harm than good, especially if the cause of the problem is an allergic reaction.