See for example   the paper arXiv:1001.1805v1 [math.CV] 12 Jan 2010,

The Schwarz Lemma at the

Boundary by Steven G. Krantz. In this paper the author explores versions of the Schwarz lemma

at a boundary point of a domain (not just the disc). Estimates on

derivatives of the function, and other types of estimates as well, are considered.The author reviews recent results of several authors, and present some new theorems as well

It seems that  this question is related to  Q1. Is there a version of Jack's lemma for hyperbolic domains in space?.

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