I had visited Goa last week, Had sea food at few occasions. I started to develop few red spots like mosquito bits on legs & arms & shoulders and they used to itch . I started cetrizine last week itself while I was there. On reaching back to Delhi, they sub sided more or less but after 5 days my both legs specially below knees have lot of red spots n crazy itching on rubing them. What to do?
when something cause allergy it takes 3 week to subsidecetrizine is not a  ChatDoctor.