These lesions may be due to bacterial infection.
Unless the lesions are seen with naked eye,it is difficult to say correct diagnosis.
Even though there is no family history,shingles
Becuase of infection only,the lymphnodes
It is too early to tell the response within 2 days.
Please take higher antibiotic like Clindamycin
along with anti inflammatory drug.
Please consult a Dermatologist
and confirm the diagnosis