Detailed answer

Intralesional corticosteroid injections are not effective for treating blackheads. These injections are primarily used to reduce inflammation in conditions like cystic acne or certain skin disorders. Blackheads, also known as open comedones, are clogged hair follicles filled with oil and dead skin cells. They can be effectively treated with topical retinoids, salicylic acid-based cleansers, and regular exfoliation. These treatments help to unclog the pores, dissolve the buildup, and prevent future blackheads. It's best to consult with a skincare professional to determine the most suitable treatment plan for blackheads.