Pics please. 
Do not do this:-
Take needle and thread. Put needle through blister from one to the other and then cut needle off thread. Leave thread in blister to act as a wick. It stops the hole sealing. Blister and skin dry out. Remove thread about day 4 and sometimes the skin reattaches to the foot. Sometimes it continues to dry and falls off leaving new skin underneath. You can wash needle in tcp but as I told you not to do this it won't matter.
The above is what I do and it works for me on multi-day walks but most chiropodists would prefer I didn't do this. It is not the modern way.
During ultra events they sometimes cut the whole blister off with a scalpal and then use iodine to make it hurt a lot, bandage, pull you to your feet and push you out the door and back on the route.
Next - how do you stop it happening again. It caused by one thing - rubbing. It is sometimes assisted by hot sweaty feet as this can soften the skin and make you more prone to rubbing. To avoid constantly taping try using different types of socks, adjusting your laces to pull tighter across the arch. You could try different insoles if you have some. After that tape it with micropore tape or simialr to both protect the foot and it helps pad out the foot which might be enough.
M..eface