Aloe vera, and more specifically Mexican aloe vera, will be effective against eczema. Indeed, it naturally contains cortisone. There is also a plant called mucopolysaccharide, found in the form of creams or gels that can be applied to the feet and hands, and this will be effective on eczema. If eczema recurs several times a year, it is generally due to an immunity problem, which can be treated with black seed.
Chamomile, used as an herbal tea or as an oil, will be effective against eczema.
What the science says: natural skin care
What published research says about the remedies mentioned above, for context — studies address material causes, and healing belongs to Allah.
Natural skin care
Aloe vera promotes healing and soothes the skin according to a review of clinical trials (Iran J Med Sci, 2019) (Plast Reconstr Surg, 2018); in eczema, daily moisturizing with emollients is the foundation of treatment (Int J Dermatol, 2025) and the skin microbiome plays a central role (J Eur Acad Dermatol Venereol, 2023). Olive oil, black seed oil, honey, and shea butter are the emollients of tradition. Precaution: test any new product on a small area for 24 hours; a lesion that spreads, weeps, or becomes infected calls for a doctor.