Reddit mentions of Spenco 2nd Skin Adhesive Knit Blister Protection, Sports, 6 Count

Blisters are something where an ounce of prevention is worth a pound of cure. Figure out what works for you (multiple socks, pre-taping certain parts of your feet, vaseline, etc) and stick with it.

Tape

• The most common is plain athletic tape, which is usually the white stuff that is commonly available at drug stores, some retail stores, and sporting goods stores. You generally want to use a layer of foam wrap, which is tape-like but has no adhesive, under the tape itself, particularly where any wound is or where there is hair.
  
  
• There's also strapping tape, which is much like athletic tape but it tends to be a little bit more stiff and more sticky and it's harder to find. You also want to use foam wrap under this. DO NOT put strapping tape directly on a blister without foam wrap in-between. It is sticky enough to rip the blister open when you remove it. I have never seen strapping tape in brick and mortar retail stores here in the southeastern US.
  
  
• Then there's stuff like Co-Flex and knock-offs which is self-adhesive but tends to be a bit lighter duty. Many people confuse this with moleskin. It is pretty skin-friendly and does not need the foam wrap under it. It is naturally elastic and good for light compression.
  
  
• Moleskin can be used preventatively or to protect an existing blister. It comes in patches or sheets with choices of adhesive or non-adhesive and also comes as pre-made bandages for blisters, but those aren't often found retail. There are also non-moleskin products that effectively do the same thing. Like this product.
  
  Blister Treatment
  
  
• Band-Aid Blister Ampoules are awesome. They're pretty sticky themselves but I would tape over anything on the bottom of the foot or anyplace else that sport-driven rubbing is occurring.
  
  
• Lancing and draining a blister is not something that everyone agrees on. I think the basic HowStuffWorks process is pretty good. It is vital that you cover and protect that drained blister thoroughly. You may have to lay off for a day or two if it's an area that you can't effectively protect from straining the skin and preventing the blister from healing.