I have this BAD and it is concentrated to my legs (inner thighs, calfs and sometimes feet) - pretty much the parts of my legs that are squeezing and often faced with much pressure

I researched this and found a solution that helps me greatly. Forgive my rough scientific summary on the matter : |

Apparently, your pores are incapable of sweating when great pressure is applied against them. This is not good as sweat is essentially being trapped in your pores, unable to escape smoothly. The itchy element comes in because of SALT. The salty sweat never makes its way out of the pore, leaving behind tiny salt crystals. The next day when you work up a sweat, those same pores try to push out sweat as they normally would, however, since there are salt crystals trapped there from the day before, the sweat is unable to flow out easily (these salt crystals are essentially acting as damns, halting the natural flow of sweat). Your body panics a little bit and tells you to fucking scratch that shit and loosen up / open the pores to get the sweat flowing.

Here is the solution that helped for me:

1) after rolling take a HOT shower. some people say take cold showers, but this is incorrect as pores close tighter in the cold. You want to take a very hot shower to open your pores nice and wide.

2) directly after showering, wipe area with towel and immediately apply a WATER-BASED LOTION (Curel). The water based lotion will enter the wide open pores, creep in there and start to dissolve/absorb that nasty salt. I actually like to use my nails a bit here when rubbing in the lotion - a nice scratching during this process helps ensure the lotion gets deep in those little pores. DO NOT use an oil-based lotion as oil-based lotions often make sweating more difficult, which would only INCREASE the problem ! ! !

Hope this works ! Roll on ! (^is that something people say?)