Welcome to HCM
We understand your concerns
I went through your descriptions. The white patches or spots formed on your skin after injuries or wounds are scars
. The more the depth of the wound the permanancy of scar increases.
Our body is able to bring back the color of area in due course of time and it takes time and directly proportional with the size of the wound. Small wound scar repairs soon and vice versa.
There are certain chemicals used for external applications available as ointments
or gels. But before applying them you need to consult a dermatologist
. Second option is using pure coconut oil, virgin coconut oil or olive oil for external application.
Hope this clears your doubts. Available for further clarification.