  Starting with a Chern-Simons theory, we derive an effective action for
interacting quantum Hall skyrmions that takes into account both large-distance
physics and short-distance details as well. We numerically calculate the
classical static skyrmion profile from this action and find excellent agreement
with other, microscopic calculations over a wide range of skyrmion sizes
including the experimentally relevant one. This implies that the essential
physics of this regime might be captured by a continuum classical model rather
than resorting to more microscopic approaches. We also show that the skyrmion
energy closely follows the formula suggested earlier by Sondhi et al. for a
broad parameter range of interest as well.
