You can try and get tbem swabbed and pcr tested for hsv. Yeast infections can cause what you describe and hsv rarely if ever causes the type of discharge you describe.
How long have the sores been there?
How long have the sores been there?
A primary outbreak almost always happens within 14 days from exposure. Most in 4-7 days. It rarely takes up to 20 days. A month later woukd be extremely unusual. Dud your dr swab the the sores?