Thanks for your query
as mentioned by you your child has got rashes which could be allergic reaction
,rashes are not related to G6PD. deficiency. You can apply calamine
lotion 3 to 4 times a day on rashes,but i advise you to consult doctor
if symptoms aggravate and do not give any medication by yourself as there is a list of medicines which are to be avoided .
Your son will be fine.