yeh i had really bad sunburn in america had it for 2 years until the skin all healed nicely and its all new skin, Sometimes it does take years to heal. in which case i was so lucky tbh i didnt get anything horrible. The sunburn i had was pretty intense but yeh they take a few years to fully heal. Just make sure to aid healing you pack yourself full of vitamins and minerals to aid healing as your cells are effectivly damaged, so to make sure you undamage them you eat healthy. If you want to make sure i take this herbal tea extra from holland and barrat, its supposed to reverse any dna damage, that might otherwsie lead to other things, i would take it in your case. O and one more tip dont sun bathe in that area again the new layer of skin is usually slightly weaker than the first layer.