Blisters on feet can be painful and uncomfortable, but there are several ways to treat them. Here are some tips from the search results:

1. Clean the area: Wash the blister with warm water and gentle soap. Do not use alcohol, hydrogen peroxide, or iodine. Antibacterial soap, betadine, and hydrogen peroxide can all be used to clean the area.

2. Protect the blister: Apply an ointment such as petroleum jelly to the blister and cover it with a nonstick gauze bandage. Painful blisters, or those in positions where they’re likely to burst, such as on the sole of your foot, can be covered with a soft dressing to cushion and protect them. It may help to cut the dressing into a ‘doughnut’ shape to fit around the blister and avoid placing pressure directly on it. Change the dressing daily and wash your hands before touching the blister to avoid infection.

3. Avoid popping the blister: Try not to pop or drain the blister, as this might lead to infection. But if a blister is large or looks like it will pop on its own, you can drain the fluid and relieve the discomfort. Sterilize a clean, sharp needle by wiping it with rubbing alcohol. Using the needle, carefully pierce one edge of the blister to allow some of the fluid to drain. Don’t remove the skin over the blister. Smooth down the skin flap and apply antibiotic ointment. Cover the area loosely with a sterile bandage or gauze.

4. Apply powder or petroleum jelly: This helps reduce friction when your skin rubs together or rubs against clothing.

5. Wear the right clothing: During physical activity, wear moisture-wicking, loose-fitting clothes. Avoid clothes made of cotton, as cotton soaks up sweat and moisture, which can lead to friction and chafing. To prevent blisters on your feet, wear nylon or moisture-wicking socks. If wearing one pair of socks doesn’t help, try wearing two pairs to protect your skin. You should also make sure your shoes fit properly. Shoes shouldn’t be too tight or too loose.

6. Consider soft bandages: For problem areas, such as the feet or thighs, consider using adhesive moleskin or other soft bandages. Make sure the bandages are applied securely.

Its important to note that if a blister is caused by a medical condition, it often can’t be prevented and needs to be treated by a doctor.