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.)
Hot compress should be use 5-10mins. It should alternately do with the cold compress for a better result.
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.
ONLY USE COLD WATER for a swollen eyelid. Hot water stimulates the cells and makes it more swollen.
HOT
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.
Applying a warm compress to swollen salivary glands can help promote circulation and reduce inflammation. Cold compresses are generally not recommended as they may not be as effective for this type of swelling.
Cold compress or ice pack (frozen peas or something else similar).
Id recommend cold, as it reduces swelling.
hot compress. to promote vasodilation that relaxes the muscles
series of hot and cold water applications. A hot compress (as hot as an individual can tolerate) is applied for three minutes followed by an ice cold compress for 30 seconds
Perhaps you enquire regarding 'hot and cold compress' as used for sprains and tissue damage.
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.