Welcome to health care magic.
From your description, you seem to be having chronic eczema
. Eczema can have relapses and recurrences. You could try the following.
Apply a steroid
containing cream for about 10-14 days till the lesions subsided
After they subside, start using a moisturiser daily twice a day immediately after bath.
Use a soap free cleanser.
Bathe with lukewarm water and never with hot water.
You could also take anti itching tablets for the initial 10-14 days for symptomatic relief.
Stop scratching or rubbing the lesions as it sets in an ' itch scratch cycle' which will make the problem worse.
Hope this helps you.