The corns are abraded, formed by long-term friction of the skin leading to hyperplasia of the cuticle. This area of the index finger is usually not abraded.

There is a color difference in the picture, or your skin is a little tight, the more you look at the white top, the more like an abscess! Go to the hospital and have a doctor look at it, you'll have to pick at it quickly if it's an abscess.

No time, Zhang this thing at night to see the emergency room can also. The purpose is to let the doctor to see if it is not an abscess, if it is not an abscess and then slowly take the time to see it.

Really not even have time to see the emergency room, on their own ruthless, in the drugstore to buy some povidone-iodine, hand and needle disinfection, their own ruthless pick off! Then take some anti-inflammatory drugs (breastfeeding the baby, no anti-inflammatory drugs can be; 3 times a day with iodine vapors in the place of picking broken, wipe with a band-aid after rubbing a band-aid to wrap a little). Abscesses you can pick off on your own.