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What should I discuss with my health care provider before using coal tar?

You should not use this medication if you are allergic to coal tar.

Before using coal tar, tell your doctor if you are allergic to any drugs, or if you are receiving ultraviolet radiation treatment for your psoriasis.

This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether coal tar passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Coal tar products may contain lanolin, mineral oil, or other emulsifiers. Check the label of any coal tar product you are using. Talk with your doctor before using coal tar if you are allergic to any of the ingredients.

How should I use coal tar?

Use this medication as directed on the label, or as your doctor has prescribed. Do not use the medication in larger amounts or for longer than recommended.

Apply coal tar cream, lotion, ointment, or solution according the directions on the medication label. Some forms of coal tar may be applied 1 to 4 times per day.

To use coal tar bath oil, pour 1 to 3 capfuls into a warm bath before bathing. The oil can make the bathtub slippery. Take care to avoid a fall.

Shake the coal tar shampoo well just before each use. Use enough shampoo to create a rich lather. Massage the shampoo into your scalp and rinse thoroughly. Apply the shampoo a second time and leave it on your scalp for 5 minutes. Rinse thoroughly.

Do not use coal tar to treat large skin areas. Do not use coal tar over long periods of time without your doctor's advice.

Call your doctor if your symptoms do not improve, or if they get worse after using coal tar.

Coal tar shampoo may discolor blond or colored hair. This effect is usually temporarily.

Some forms of coal tar can stain fabric or other surfaces.

Store coal tar at room temperature away from moisture and heat. Keep the medicine tightly closed with not in use.

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