What can I do for cold sensitivity after tooth extraction?

Avoid Cold. Not forever. Most of the time, cold sensitivity after extraction is from the adjacent tooth. When a tooth looses the insulation that the adjacent tooth provides, the exposed root surface and tooth surface can sometimes be sensative to cold. Usually this is temporary however if a large defect exists at the extraction site, dental intervention may be necessary. Try sensodyne toothpaste 2 weeks.
Several things. First keep the extraction site clean to allow complete healing to cover the roots of the adjacent teeth. Exposed roots can be treated with a Fluoride varnish if it continues. Sometimes decay exists on the adjacent roots that needs repair. Bacterial induced inflammation of the tooth central tissues may or may not heal over time. If it persists, see your dentist, have pulp vitality test and xray.

Related Questions

Cold sensitivity after tooth extraction ok?

Not uncommon. Following the extraction of a tooth, some patients will experience some sensitivity to hot and cold substances with teeth adjacent to the extracted tooth. In most instances the sensitivity will decrease with time. Read more...
Another tooth. A tooth socket after extraction can be painful but not cold sensetive. If you are having cold sensitivity it has to be another tooth. Read more...