Cluster of small, somewhat red raised bumps, not itchy, on upper thigh. is this genital herpes? never been sexually active, had cold sores in the past

Not herpes : You cannot have genital herpes if you never had sex; genital herpes is unlikely to first show up as a rash on the thigh; and your description doesn't sound like HSV. This definitely is not genital herpes, and also not HSV1 from your oral infection. If the rash continues to bother you or doesn't clear up, see a doctor for professional diagnosis.