  We describe in detail, in the context of the simple scalar $\phi^4$ theory,
the prescription for resummation of daisy and superdaisy diagrams in the
effective potential using the solution of the gap equations in the infrared
limit. We find that the latter procedure is consistent provided we neglect
logarithmic terms from the finite-temperature self energies and from the
integration of overlapping momenta. This amounts to dressing only the zero-mode
contribution to the finite-temperature effective potential. Improving also the
non-zero modes, would require exactly solving (not in the IR limit) the gap
equations. In general this can only be done in a theory where all self-energies
are momentum independent ({\em e.g.} in the scalar theory at the symmetric
phase $\phi=0$). However some partial dressing procedures are still possible in
general.
