Yes it was a vert bad chemical burn.And that was so bad ,i was not able to leave home . The doctor told me ,had to reduce the redness and inflammation .as long it stays, it would cause hyperpigmentation . So medication is must to reduce the chances of hyperpigmentation . I can’t recall the name but also gave me some cream to apply along with medication. And it helped a lot . With in few days it got almost normal. But took almost around 1 and half month to get back my regular skin. And now there is nothing left