Hi, My uncle had gotten the first shot for covid vaccination. He got down with fever and chills for 2- 3 days and then got better. However post that initially he got some heat rashes sort of thing on his chest and arms. Almost a week after the vaccine now he has red rashes all over his body which is very itchy and irritating. Kindly suggest he took some medications as suggested by a skin specialist but it isn't healing. Thanks