If you wish to keep it simple, an old trick was to rate Tri-x at EI 64, then underdevelop in straight Microdol-X. Smooth and creamy flesh tones were the result, I was told.
Not being able to retouch negs, I did something similar with a gal who had bad acne. Loaded up some Edwal FG7 with about five times the sodium sulfite. It worked very nicely