Blisters are caused by constant friction and impact, and also appear in areas of the foot where the skin is more prone to damage. Sometimes, when sudden pain in your foot comes on, you may want to grit your teeth and keep going. But this is not the way to beat blisters, instead, letting them grow can have serious consequences.

If the blisters are less than half the size of the fingernail, it is usually only necessary to cover the blisters with adhesive tape, Band-Aid or special blister stickers to prevent them from being damaged by continued friction, and the body will recover on its own.
If the blister is larger than half the fingernail, it needs to be pierced to release the fluids in it to help the body recover. Divided into the following steps:
Step 1: Wash the affected area - Wash the affected area thoroughly with water to remove the sediment and sweat.
Step 2: Drain the effusion - Draining the effusion is the key to treating the blister. First, use a sterilized needle tip to pierce from the bottom or side of the blister, and then use a clean cotton thread to divert it.
You can use iodine to wipe the needle tip, or sterilize it by fire; when diversion, if conditions are limited, you can also use hair strands.
Next, squeeze all the fluid out of the blisters and wipe them off with a paper towel. Be sure to squeeze every drop of fluid from the blister, or the wound at the blister will hurt when you start walking.
Step 3: Disinfection - After you've drained the blisters, disinfect the affected area with an iodine stick, alcohol, or antiseptic ointment.
Be careful not to remove the epidermis covering the blisters at this point, as this epidermis serves as a protective layer during the recovery process.
Step 4: Bandage the affected area - The bandage acts to cushion and speed up healing. If conditions permit, it is best to use sterile bandages and regularly check the wound for secondary infection.
If you're ready to go to bed after treating the blisters, you can leave the wound unwrapped and allow the wound to ventilate. If you want to continue walking in the morning, you need to bandage the affected area.
