Hi, I just got all four wisdom teeth extracted a week and 1 day ago. I went for a check up yesterday and everything looked fine and normal including the  flappy gum but last night while I was sleeping, I coughed and felt the slit rip down towards where my wisdom tooth used to be. There is no bleeding but its bothering me because I feel it and I dont want it ripping where the wisdom tooth was and I dont like looking at it because that kind of stuff freaks me out especially when im cleaning it.
Hello & welcome, This usually happens post-operative & there is nothing to worry. You have to take optimum care to avoid any secondary infection.  Visit your dentist for thorough clinical examination.  Avoid forceful gargling or blowing with cheeks unless healing is completed.  Warm saline gargles are preferred over any other medicinal gargles in this case.  Avoid hot fomentation. Take care.