Fiberglass Cast Care (Child)

Home care

Your child’s doctor may prescribe medicines to treat pain and ease itching under the cast. Follow the doctor’s instructions for giving these medicines to your child.

General care

• Have your child sit or lie down and keep the injured area raised above heart level as often as possible for the first few days. This will help reduce swelling.

• Put cold packs around the cast as directed to reduce swelling or ease itching. Do this for 20 minutes every 1 to 2 hours the first day for pain relief. You can make a cold pack by placing ice cubes in a plastic bag that seals at the top. Wrap the bag in a thin towel. As the ice melts, be careful that the cast doesn’t get wet. Keep using the ice pack 3 to 4 times a day for the next 2 days. Then use the ice pack as needed to ease pain and swelling.

• Look at the cast every day for any damage. This could be a soft or flat area, flaking, or cracking.

• Check the skin around the cast often. The skin should look healthy and not be swollen. Your child should be able to move all fingers or toes.

• Have your child wiggle toes or fingers or tighten and loosen muscles several times a day. This will help increase blood flow.

• Don’t let your child put objects inside the cast. Also don’t let your child stick anything inside the cast to scratch an itch.

• Reduce itching by distracting your child. It may help to scratch the opposite limb or scratch the skin outside of the cast.

• Even though fiberglass casts resist water, it’s important to keep the inside dry to prevent skin irritation. Keep the cast dry at all times. Have your child bathe with the cast well out of the water. Protect it with 2 large plastic bags. Separately close the top end of each bag with a rubber band or tape. If the cast gets wet, you can dry it with a hair dryer on the cool setting. If the cast stays wet, contact your child's doctor for instructions.

• Watch for any snags on clothing or furniture. Fiberglass tends to be bumpy. Prevent breaking off any edges of the cast. Only your child’s doctor should adjust or remove a cast.

• Look at the skin underneath the cast for the signs of infection listed below. Use a flashlight to help you see.

• If your child has a hip or large leg cast, talk with your child’s doctor about tips for toileting and how to prevent skin irritation.

Follow-up care

Follow up with your child’s doctor as advised.

When to get medical care

Contact your child’s doctor right away if:

• The cast cracks.

• The cast seems too tight or too loose.

• The cast is wet or soggy for more than 24 hours.

• The pain gets worse or isn’t controlled by prescribed pain medicines.

• There is pale color or discoloration of the skin around the cast.

• There is numbness or tingling near or under the cast.

• There are signs of infection (increased redness or swelling, warmth, pain that gets worse, or bad-smelling drainage).

• The surface of the cast feels warm.

• Your child has a fever (see "Fever and children" below).

• Your child has chills.

Fever and children

Use a digital thermometer to check your child’s temperature. Don’t use a mercury thermometer. There are different kinds and uses of digital thermometers. They include:

• Rectal. For children younger than 3 years, a rectal temperature is the most accurate.

• Forehead (temporal). This works for children age 3 months and older. If a child under 3 months old has signs of illness, this can be used for a first pass. The doctor may want to confirm with a rectal temperature.

• Ear (tympanic). Ear temperatures are accurate after 6 months of age, but not before.

• Armpit (axillary). This is the least reliable but may be used for a first pass to check a child of any age with signs of illness. The doctor may want to confirm with a rectal temperature.

• Mouth (oral). Don’t use a thermometer in your child’s mouth until they are at least 4 years old.

Use a rectal thermometer with care. Follow the product maker’s directions for correct use. Insert it gently. Label it and make sure it’s not used in the mouth. It may pass on germs from the stool. If you don’t feel okay using a rectal thermometer, ask your child's doctor what type to use instead. When you talk with any health care provider about your child’s fever, tell them which type you used.

Below is when to contact the doctor if your child has a fever. Your child’s doctor may give you different numbers. Follow their instructions.

When to contact the doctor about your child’s fever

For a baby under 3 months old:

• First, ask your child’s doctor how you should take the temperature.

• Rectal or forehead: 100.4°F (38°C) or higher

• Armpit: 99°F (37.2°C) or higher

• A fever of ___________as advised by the doctor

For a child age 3 months to 36 months (3 years):

• Rectal or forehead: 102°F (38.9°C) or higher

• Ear (only for use over age 6 months): 102°F (38.9°C) or higher

• A fever of ___________ as advised by the doctor

In these cases:

• Armpit temperature of 103°F (39.4°C) or higher in a child of any age

• Temperature of 104°F (40°C) or higher in a child of any age

• A fever of ___________ as advised by the doctor