is a condition in which the body cannot break down ingested alcohol completely, due to problems in synthesis and genetic coding of the enzyme, acetaldehyde dehydrogenase (ALDH2)which is responsible for breaking down acetaldehyde, a product of the metabolism of alcohol.
Try to decrease the amount of alcohol that you consume and see if the symptoms disappear or not.Also keep yourself well hydrated after alcohol consumption and munch some snacks along with alcohol.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.