Small Red Dots On Skin. Petechiae can result from both niacin vitamin B3 and vitamin C deficiency. Pinprick red dots on the skin that are not itchy enough to scratch are called petechiae.
The small red spots on skin can look very different from person to person but they are usually associated with intensely itchy redness and dryness. Depending upon the severity of the allergy you may require medical attention. Petechiae are red or purple dots appearing on the skin.
They occur when blood vessels break beneath the surface of the skin creating what is known as a petechial rash.
Some immune diseases are associated with the development of red patches on the skin. Chicken skin or keratosis pilaris KP is a common skin condition that is vary with eczema. Pinprick red dots on the skin that are not itchy enough to scratch are called petechiae. Older people often exhibit red dots on their lower extremities which is caused by scratching the area and damage to the capillaries.