Hi Elyse
They could be a lot of things. Have you used a new lotion, soap or laundry soap? Have you been sweating more where it could be a heat rash?
They could be bug bites as well. Or merely pimples.
You could try keeping the area as clean and dry as possible. Apply some hydrocortisone cream if you have it. If they don't go away in a few days, you could check with your doctor.
Hope that helps,
Kerry
Nurse (RN)
35 years in Nursing: OB/GYN, Peds, Oncology, hospice, Ortho, Neuro, Addiction, Recovery, Geriatrics,