Requesting more info about eczema - cure.

Hello,

I moved to a different place in IOWA. After 2 yrs i have started feeling itchy sensation all over my body/ skin (only certain places at a time). if i draw a line with a small piece of stick on my skin,the skin slowly turns into red and no itching at that time. However sometimes i can see some kind of small red bumps on my skin and starts itching it will go away by itself in a few minutes, I can't think of fungal infection because its all over my body.
If i take one Claritin (Anti Histamine) i feel good, and no redness or itching for 2 days 3rd day its back to normal. i have to take claritin again. I visited couple of doctors, neither of them could not tell me what it is or why.

Do you think its due to the water or food?
Do i need to use any special moisturiser, i barely used one.
Is there any cure? i am 28yes old
please respond
Thankyou
Phil M
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