Cold compress or ice pack (frozen peas or something else similar).
For unknown reasons of ankle and foot swelling, it is generally recommended to use a cold compress to reduce inflammation and numb the area. If the swelling persists or worsens, it would be advisable to seek medical advice to determine the underlying cause.
HOT
A cold compress will assist in decreasing the amount of swelling.
Post cosmetic surgery you should use warm compress. My mother just had a breast reduction and was instructed to use a warm compress. Cold compress is to reduce swelling or inflammation after an injury like a spained ankle. Wish you the best in the healing process.
I have just learned that if you have an infection you should NOT use heat. The reason being is that it draws the infection out, and encourages it to spread. Cold is the way to go if you are going to use a compress (although it may be difficult. I know that a warm compress has helped me more than a cold compress.)
If you are bitten by a scorpion, you should clean the wound with soap and water, apply a cold compress to reduce swelling, and seek medical attention immediately.
Hot compress should be use 5-10mins. It should alternately do with the cold compress for a better result.
Id recommend cold, as it reduces swelling.
A cold compress is recommended for an insect bite to reduce swelling and relieve itching. Cold helps to constrict blood vessels and numb the area, providing relief. Avoid applying heat to an insect bite as it can worsen swelling and inflammation.
A cold compress is best immediately after the injury to decrease swelling and to increase vasoconstriction to the area to help keep bruising to a minimum. After a day or so, when the swelling has decreased, apply warm compresses to increase blod flow and eliminate the bruising quicker.
Applying a warm compress can help improve blood flow and reduce swelling, while a cold compress can help numb the area and reduce pain and inflammation associated with IV infiltration.
Cold - ice or an icepak will reduce swelling. Heat packs should not be used until the tissues have regained normal skin temperature, which usually takes 2 or 3 days.