All is not lost.
I bring you this double chin remedy from
The Family Weekend Book by Beryl Irving 1941.
Take a deep breath and incline the neck forwards.
Exhale, relax neck muscles,
and drop head on chest.
Take a deep breath, lift head,
stiffening neck muscles,
and drop head backwards.
Take a deep breath, stiffen neck muscles
and incline head sideways to the left.
Breathe out, lift head,
and repeat to the right.
These exercises, taken in conjunction with
the use of a good reducing cream, patted in,
followed by an astringent lotion, and,
if you really mean to go at it wholeheartedly,
a chinstrap worn at night,
should work wonders.
I don't believe Audrey Hepburn
ever needed a chin strap
but she appears to be wearing one anyway.