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Swollen lymph nodes, lump behind ears caused due to allergies. Itchy, tenderness in scalp. Take penicillin to fight infection?

my lymph nodes have been swollen for quite some time now. i figured it was because of my allergies that i have badly. about 4 days ago i noticed a lump/knot on the back of my head and behind my ears. is this caused by a sinus infection from my allergies or from sonething else. also my scalp has been very itchy and tender to the touch at times. i also notice that i have lost some hair at the top center of my head. will penicillin help fight this infection off
Asked On : Mon, 12 Nov 2012
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Allergist and Immunologist 's  Response
Allergies do NOT usually cause swollen lymph nodes, but infections. You are either prone for recurrent sore throat, tonsillitis etc that causes the lymph nodes to swell up.
Rhinosinusitis (bacterial) can be very troublesome and difficult to treat, and a CT scan is the best modality of investigation in this setting.
Penicillin can decrease lymph node swelling in infections, but not recommended for sinusitis or for hair loss.
If recurrent lymph node enlargement and hair loss is a feature, suggest you get the following tests done and seen by a physician or Rheumatologist if any of them are abnormal: CBC, fasting glucose and lipid profile, LFTs, creatinine, ANA, TSH (thyroid profile).
Answered: Tue, 13 Nov 2012
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