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or Herpes is an infection caused by the chicken pox
virus aka varisella zoster.
Its usual for the lymphnodes
around the affected area to be enlarged. In this case the axillary and mammary lymphnodes are enlarged. When the infection gets better, so will the lymphnodes go away. Although herpes virus , stays in the latent/dormant form in the body, but the immediate infection will certainly go away.
She needs medication for herpes, which is anti-viral med's, painkiller meds mithg be needed as its painful for some.
Alternative medicine, like homeopathy
can be taken here, as supportive.