Handwash only in lukewarm water and mild soap

Best that we can suggest:   You can use

Soak the garmen  in suds for about 10 minutes, do not rub or wring.Rinse thoroughly in lukewarm water.Wrap in a towel to excess moisture.Smooth the garment out on a dry towel and pull gently into shape.Never hang sweaters .If you wish to brush the sweater you can use:

or similar comb.

You can also access  the dry cleaning specialists servises.