Why should applying the ice pack and propping her foot relieve swelling?

Applying an ice pack and propping a swollen foot can help reduce swelling by promoting vasoconstriction and elevating the foot. Here's the detailed explanation:

1. Vasoconstriction: Applying an ice pack to the affected area causes vasoconstriction, which is the narrowing of blood vessels. Cold temperatures cause the blood vessels to constrict, reducing blood flow to the area. This helps in decreasing the amount of fluid that leaks out of the vessels, leading to reduced swelling.

2. Reduction in Inflammation: Ice packs have a numbing effect, helping reduce pain and inflammation. By reducing inflammation, the fluid buildup associated with the swelling can be minimized.

3. Elevation: Propping the foot up above the level of the heart helps in promoting venous return, which is the flow of blood back to the heart from the extremities. Elevating the foot assists in draining the excess fluid from the swollen area and reducing the swelling.

4. Improved Lymphatic Drainage: Keeping the foot elevated also improves lymphatic drainage. The lymphatic system is responsible for removing excess fluid from tissues. When the foot is elevated, it allows the lymphatic fluid to drain more effectively, further reducing swelling.

By combining the effects of ice pack application (vasoconstriction and inflammation reduction) with foot elevation (venous and lymphatic drainage), the swelling can be effectively managed and the healing process accelerated.

It's important to note that if the swelling is severe or does not improve with simple home remedies like ice packs and elevation, it's essential to consult a healthcare professional for proper diagnosis and treatment.