A believer does not undergo (the trouble) of running a thorn or more than that when Allah effaces his sins. (Using translation from Muslim 2572c)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَا يُصِيبُ الْمُؤْمِنَ شَوْكَةٌ فَمَا فَوْقَهَا إِلَّا قَصَّ اللهُ بِهَا عَنْهُ خَطِيئَةً