Hi..
I have read your question in detail and can very well understand your concern and you need not to worry about the white/yellow thing you are seeing in your socket..
After the tooth extraction the blood clot forms in the socket acts as a medium through which new cells grow and the healing takes places..
The white or yellowish thing that you are seeing in your socket is nothing but the healing tissues which in the initial phase of healing appears in white yellowish colour..
You need not to worry at all as it is nothing serious and the healing is progressing well..
Just keep following the instructions given to you by your
dentist and maintain a good hygiene and keep away from
smoking, drinking ( if you do) or any other recreational drug as it will interfere with healing..
In case if you experience any pain or foul smelling discharge then you need to consult your dentist..
As of now nothing seems abnormal..
Hoping that your query is solved..
Thanks and regards..
Dr.Honey Nandwani Arora...