u/Inevitable_Pirate463

I was wondering how long these marks take to heal? I was supposed to have my first day of classes coming soon but something triggered me recently so my whole arm is covered in slashes that constantly sting and some areas look bruised with red lines. How long will these scratches last on my arm? Is there also a way to cover them up safely? I’m a bit anxious having these scratches on my arm and letting my school see it.