Eczema is a recurrent skin disease and can become chronic if not treated promptly and completely.
From the pictures that you have shared, your skin appears dry and red at the localized affected areas and this will definitely cause much unbearable itchiness to you especially at night time, under hot and humid weather, whenever you are overly stressed or lack of sufficient sleep.
This type of eczema could also be easily triggered after consuming too much spicy and fried food.
Causes
In TCM, the basic underlying cause for eczema is weak digestive system causing build up of dampness-heat in the body and subsequently contracting exogenous “wind” that in combine manifest as eczema.
The cause for weak digestive system is usually attributed to unhealthy lifestyle that typically prefers spicy and fried food and indulgence in sweetened food etc. Too much of the abovementioned food undermined the function of the digestive system and gradually leads to build up of “dampness-heat” in the system.
The condition further influences other organs that mainly implicate the heart, lungs and the liver which will display as different forms of eczema as the disease progresses.
From just the pictures provided, your condition might have further exhausted Yin and Blood in your body. However a complete and an accurate diagnosis could only be possible when we have checked your tongue and pulse and getting more information from you.
Treatments
The main form of treatment for eczema in TCM is through customized herbal prescriptions and this could be combined with acupuncture according to the condition that will require in-depth consultation and diagnosis.
For your case, herbal medications that help to nourish Yin and Blood could be needed. However a complete diagnosis is needed to come to final conclusion for your treatment.
Advice
Stay away from hot bath and wash;
Try your best not to scratch the localized area to prevent infections;
Avoid spicy and fried food, seafood, chicken, mutton etc and reduce on usage of spices;
In your case, moisturize your skin at least 2 times per day and ensure you have sufficient sleep of at least 7 hours and try to rest before 10pm; Keep away from direct strong sunlight exposure, keep your skin cool.
Hopefully my explanation above helps.
Best Regards.