Acknowledge/appreciate/validate/take seriously client's distress.

Encourage ventilation of feelings.

Reassure client of your continued availability.

Reinforce/support all positive responses.

Reinforce/support problem-solving efforts.

Offer alternative methods of coping.

Negotiate a contract of not doing anything to worsen the situation for a period of time.

Negotiate what to do during periods when feeling bad.

Provide assured and continual support.