Thank you for reply,@loribmt. Currently she is taking Vitamin C 1000mg and Riboflavin 100mg by a Day. We asked her Dermatologist for Covid19 Vaccine at July. He said doesn't know how her body will react for Covid19 vaccine. Also if she may have a Covid19, it may be mild case because she is young. But it's difficult say her reaction for.Covid19 too. he said It's her decision for taking vaccine. We will try to ask her Dermatologist again. Thank you so much.