Need suggestions 😭😭😭

My underarms have always been very bright and spotless but recently i did waxing. Before waxing i had done shaving at home because i was in a hurry and had to wear something sleeveless. Now since shaving doesn’t remove hair from its roots, therefore, some of the hair were still there. The lady did waxing there and kind of irritated it. After coming home, i had to go somewhere, so i applied underarm roll on which had aha after 3 hrs of waxing and my underarm was still stinging. Next day, the stinging didn’t go so i applied ice and it went away. After like 1 week, i noticed that the stinging area has become dark and i am crying because i dunno what to do😭😭😭😭😭😭help what do i do? I loved my bright underarms