As an STD assistant, individuals with HSV-2 (Herpes Simplex Virus type 2) are usually allowed to donate blood. Herpes does not typically disqualify someone from being a blood donor unless they have active sores or lesions at the time of donation. It is always best to check with your local blood center or organization for their specific guidelines and requirements before attempting to donate if you have HSV-2. If you are unsure about any potential restrictions based on your herpes status, it's recommended that you reach out directly to the relevant authorities responsible for managing blood donations in your area prior to donating.