  We describe a quantum droplet of a Bose-Bose mixture squeezed by an external
harmonic forces in one spatial direction. Our approach is based on the
self-consistent method formulated in [1]. The true spatial droplet profile in
the direction of confinement is accounted for, however local density
approximation is assumed in the free directions. We define a numerical approach
to find the beyond-mean-field contribution to the chemical potential
(Lee-Huang-Yang chemical potential) -- the quantity that determines the
droplet's profile. In addition to the numerical approach, we find the
Lee-Huang-Yang potential in the analytic form in two limiting cases: a
perturbative result for a strong confinement and a semiclassical expression
when confinement is very weak.
