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Itchy pus filled sores on head can be due to a bacterial skin infection called folliculitis or it can be due to shingles.
Follliculitis is a bacterial skin infection of hair follicles caused after shaving or inadequate hygiene.
It can be managed by
-
topical antibiotic ointments containing hydrocortisone for relief from itching and inflammation.
-Washing hair regularly with warm water and immediately drying.
-
oral antibiotics like amoxicillin thrice a day/cephalexin twice a day for 5-7 days can be used.
shingles are usually associated with redness,
tingling sensation at the site of blister.it may be associated with
low grade fever.
It can be treated with anti virals like valacyclovir thrice a day for 7-10 day.
Above lesions need to be shown to
dermatologist to confirm diagnosis by physical examination.
Hope this information helps.
Feel free to ask any further doubts.
thanks