I had the cold cap twice. My chemo is weekly for 12 weeks (No 7 on Friday) and I think if I had been having the chemo every 3 weeks I would have succeeded with the cap. It is very uncomfortable when first put on and feels like brain freeze (eating very cold ice cream). After about 5-10 mins the feeling goes away and you are just uncomfortable as the cold cap is very tight. Make sure you wear warm clothes and have plenty of the warm blankets. One of the draw backs I found was the extra time, half an hour before treatment and one hour after treatment is finished. Give it a go and good luck. I also got a wig but being 67 and grey decided to get a brown wig. I love looking a bit different.