Thank you for uploading the image for my better understanding.
This looks like Folliculitis of the scalp.
When hair follicles on the scalp become inflamed, it leads to a condition called scalp folliculitis. Folliculitis isn’t unique to the scalp, it can also affect the body, especially in areas that are irritated by tight clothing or traumatized by shaving. Typically, folliculitis causes red scalp bumps that are tender or itchy. The bumps may be filled with a clear or yellow fluid.
This skin and scalp condition is caused by bacteria or fungus. When it involves the scalp, it’s more common in people who don’t wash their hair regularly and those who wear tight hats or constrictive head wear. It’s also more common in the summer when the air is hot and humid.
Another special type of folliculitis caused by a bacteria called pseudomonas comes from soaking or swimming in poorly maintained pools, hot tubs or whirlpools.
Folliculitis of the scalp may respond to topical antibiotic treatment, although some of the bacteria that cause it have become resistant to antibiotic ointments available at the drugstore. Shampooing every other day with a mild shampoo that contains tea tree oil may help as tea tree oil has natural antibacterial properties. In cases that don’t improve with tea tree oil, an anti-fungal shampoo may ease symptoms. Its worth looking into products that contain benzoyl peroxide or salicylic acid, and the following products help to care for and hydrate the hair follicle.
But as of now - I suggest you go ahead with oral antibiotic therapy with Oral Clindamycin for a period of 7 days please. This can give excellent relief as it has got very good tissue penetration.
The appearance looks like a folliculitis, but a sebaceous cyst with secondary infection cannot be completely ruled out and even otherwise the same management strategy will work excellently well for that also.
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