  We calculate the electrical resistivity of a two-dimensional electron gas
that results from two-particle collisions and strong Rashba spin-orbit
coupling. In the absence of impurities, two-particle collisions do not
contribute to resistivity. When combined with impurity scattering, the
two-particle correction to the resistivity is proportional to the square of
temperature $T$ if only the lower helicity band is filled, but the $T^2$ term
vanishes if the Fermi level is above the Dirac point.
