A pins and needles sensation above the lips may be related to dietary factors, mosquito bites, mouth ulcers, allergic reactions and other factors, according to the specific circumstances of reasonable judgment. 1. Dietary factors: If you have recently used spicy stimulation or too cold food, capsaicin in the food will cause stimulation of the local nerves of the lips, which will paralyze the lips, and then the pins and needles feeling. 2. Mosquito bites: especially in the summer, if the lips are mosquito bites, mosquitoes carry toxins will cause damage to the lips skin, so that the local redness, swelling, pain and other conditions, which makes the lips appear pins and needles. 3. Mouth ulcers: If the mouth is stimulated by trauma and bacterial infection, it will cause damage to the oral mucosa, resulting in mouth ulcers, and the mucous membrane of the lips will also appear pain and pins and needles. 4. Allergic reaction: If the lips are stimulated by smoke, pollen and other allergens, it will cause some damage to the mucous membrane above the lips, redness, swelling, herpes and so on, and there can be a pinprick sensation of pain. If the pinprick sensation above the lips can not be effectively relieved, it is necessary to go to the hospital in a timely manner for examination and symptomatic treatment to avoid bringing other effects to life.