Hello,
A painful lump in the underarm usually means that you have an infection somewhere in the upper body - teeth, gums, tonsils, neck, upper chest or arm.
Please take a pain killer like tylenol twice daily after food fro 3 days. If the lump does not decrease in size or remains as it is , please see a doctor.
I hope this helps.
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Experienced in the management of Pregnancy,Infertility,Menopause and all problems in Pregnancy and Gynecology

