My friend had some problem with her sunburn two weeks ago. As far as I know, if you go red and your skin feels hot and painful and sometimes swelling, you have a first degree burns. This can be treated by home remedies;
* Drinking a lot of water but not tea or coffee, alcohol or sofdrinks. * Diluted fruit juices or water are best. * Cool showers will reduce the pain and soothing creams can help.
The sunburn reduces the skin's ability to act as a barrier to chemicals and can penetrate deep into the dermis. From there, into the bloodstream where the sensitization starts. You may find yourself in the emergency room where a doctor injects before stitching you up.