I have tried searching for a previous topic on this but so far have not found an answer.
With the little time I have spent sculpting I have tried to use the brush or clay tools in such a way that they built more topology not stretching or subdividing. Kind of like adding a shaped shell on top of the existing. I am guessing dynamic topology is the answer here.
I did find a way to build up using a mask and extracting a shell then using voxel Re mesh, this is a messy operation though.
Any hints or suggestions?
Or point me to a previous thread on this topic.