Detailed answer

Acne is a skin condition that occurs when hair follicles become clogged with oil and dead skin cells. Allergies to skincare products, on the other hand, typically manifest as redness, itching, or rash on the skin. Although allergic reactions can sometimes lead to inflammation and irritation, they do not directly cause acne. Acne on the scalp may have different causes, such as hormonal imbalance, excess oil production, or blocked hair follicles due to sweat and dirt. It is important to address the specific causes of scalp acne and use appropriate treatment methods, which may include medicated shampoos, topical treatments, or changes in hair care routine.