Hi, 5 Days Ago I Had Two Teeth Pulled, On

Hi, 5 days ago I had two teeth pulled, on day two I developed dry socket & went to the dentist & he fixed it with a gauze... looking at the sockets the back molar tooth socket is closing and the one next to it isn't.. in both holes I can see brown & white.. is this normal? Also, everywhere the dentist ejected the numbing solution has a white blister over the ejection site, is this also normal?