If a patient has herpes, he should not drink beer because it contains a certain amount of alcohol, which, once ingested into the body, may cause capillary dilation at the site of the lesion, especially if the herpes has formed a significant inflammatory reaction, which may cause a more pronounced redness or swelling at the site of the lesion, or a significant congestion reaction, which is not conducive to the recovery of herpes. Whether it is herpes simplex or herpes zoster, clinically you should not drink beer if you have already developed, obvious blisters and inflammatory erythema and painful symptoms. Also, spicy and irritating foods should not be eaten in the diet, as they may aggravate the herpes lesions.