I have been undertaking laser hair removal and never had problems. However, yesterday during my 3rd session I got badly burnt in my arms only. The settings were the same as used in previous sessions - 19J/cm2, 40ms, 1,5Hz, 755nm. Can you please tell me what should I do to help to heal as fast as possible? I'm terrified with the idea of having to wear long sleeves all summer. How long should it take for the skin to become ok again? Thank you so much for your help in advance!!