"Chris" wrote

I have a few minor spots where the grout in my bathtub tile has fallen
away.. Would I have to re-grout those areas? or, get some tub caulk
and a toothpick? It's like.. two or three little areas.. Seems like a
trouble to mix grout for a few minor areas..

Tub caulk will work fine. Best to do this quickly as water may be seeping
behind causing damage.