My feet are itchy and burning after itching....and knees arms hands feet itches in night me. I got red rashes after 2 days of itching. Tq?

Clean, don't scratch. Clean the bedding well. Gently clean your body well too and wipe w/ diluted vinegar or witch hazel, etc. Use a hypoallergic lotion too. Take Benadryl (diphenhydramine) as directed. If you still suffer, see a Dr. You might need a lb test and/or a Rx anti-inflammatory. Try hard to not scratch! Avoid infection.