Welcome to healthcare magic,Eczema
is seen in people with very sensitive skin with a defective barrier function. This sensitive skin is going to be there with you forever, but eczema can be controlled. Hilly region has lower humidity and temperature. This will dry up your skin and makes the eczema worse. To maintain barrier function of skin you need to moisturize the skin whenever you feel dry at least twice a day. Avoid hot water bath and excess soap. Some food might make eczema worse and the trigger is unique to each patient.
For the existing eczema you need a topical steroid
cream. Get it prescribed by your dermatologist
Hope this helped