The best thing to do is try out some new types of tapes using the "patch test" method. Just cut several small pieces of each kind of tape and stick them on an exposed area of skin (on arm or chest), leave for 24 hrs to see which ones (if any) will cause a reaction.

Some people also say the new Walker "thick" scalp protector creates a better barrier to guard against skin irritation and others use a light coating of liquid bandage that you can get in any pharmacy to create a similar barrier.

You'll probably need to use some Got2b Spiking Glue for attaching for a few days to give your scalp a chance to recover from the tape rash before trying a new type of tape.