For the treatment of eczema caused by low immunity, we can apply Gui Shen Wan, which has the effect of benefiting Qi, tonifying blood and strengthening the spleen to nourish the heart. It mainly treats symptoms such as palpitation, forgetfulness, insomnia, loss of appetite, atrophy, and weakness of limbs due to disharmony of the heart and spleen, corresponding to the manifestation of immune deficiency in Western medicine. For western medicine treatment, BCG polysaccharide nucleic acid injection can be selected for intramuscular injection once every other day or with oral administration of splenamine-freeze dried powder corresponding treatment.