Figure 2

Erythematous skin disease, Case 2, 3 and 4. Erythematous skin lesion of the case 3 in the entire face (upper left) started improving approximately 30 min after the H2 infusion in the left side of the face first (upper-middle) and then in about one hour, the whole face improved (upper right). Severe swelling and erythema of case 2 subsided in 7 days after H2 treatment (lower left). Finer papules of case 4 started coalescing (lower middle). In 3 days after H2 treatment (lower right), significant improvement was noted and the skin lesion did not recur.