What can I do to help take of the dizziness that I'm experiencing?

My husband has this too.

From http://www.emedicinehealth.com/benign_positional_vertigo/article_em.htm:

Self-Care at Home

* Lie down and rest. Take precautions to prevent falls.

* Do not drive, work at heights, or operate dangerous machinery in case you get an attack of vertigo.

* Avoid sudden head movements and body position changes, especially looking up.

* You may try some home therapy exercises that are meant to disburse the inner ear particles that are causing the trouble or desensitize the inner ear nerves that are being stimulated.

* The following are called the positional exercises of Brandt and Daroff. You will feel vertigo while doing these, but with each repetition, the severity and duration should decrease.

1. Sit on the edge of the bed near the middle, with legs hanging down.

2. Turn head 45° to right side.

3. Quickly lie down on left side, with head still turned, and touch the bed with portion of the head behind the ear.

4. Maintain this position and every subsequent position for about 30 seconds.

5. Sit up again.

6. Quickly lie down to right side after turning head 45° toward the left side.

7. Sit up again.

8. Do 6-10 repetitions, 3 times per day.

Do you live in Florida? All I can add to Wondergirl's answer is to avoid taking a shower at night. Best wishes