Red spots on the skin are not painful and itchy

First of all, when the skin red spot painless, if pressed with a thin stick, red does not fade, it may be caused by capillary bleeding, the most common cause is purpura; if the red blood spots fade, it may be caused by capillary congestion, the most common cause is spider nevus or hemangioma. In addition, the lack of vitamin B, hair Zhou keratosis and other diseases will also show the skin red spot painless phenomenon. Therefore, for these phenomena, you need to go to the hospital for blood test, find out the cause and then carry out treatment. At the same time, it is recommended that you can eat a light diet for conditioning, such as eating some vegetable soup, hot rice porridge, to prevent eating spicy and irritating foods, not to mention chemical stimulation.