Keto rash and fatigue. Please help!

Hi everyone! So this is the third time I will be trying Keto. The first two times I lost weight and felt overall healthier, which was great but battled with fatigue and my eczema got worse. I read that there is something called keto rash which happens around a few weeks into keto. Honestly the itching was so bad that I stopped keto altogether and resumed eating carbs. Maybe the keto rash has something to do with detoxing the body? Has anyone gone through this and has some solutions? Thank you ahead of time!