Over the years we've taught thousands of physios both rigid taping (McConnell) and KT. Both are excellent at being pain relievers.
The research for both is generally pretty toot - but don't throw the baby out with the bath water.
As long as the right tape is used for the right thing and put on by the right person, then it's smiles all round. If taping (regardless of flavour) doesn't make you feel any better, then it's doing no more that acting like a plaster.
If tape decreases your pain then it'll give you the ability to move better with greater control and consequently better alignment.
It must be used as an adjunct to treatment and never on it's own.....well it can be, but you'll be back!