Having pimples on your back and scalp for over a year with varying density suggests a persistent skin condition that would benefit from evaluation by a dermatologist.

🩺 When to See a Doctor

• Persistent pimples lasting more than several months should be assessed to rule out conditions like acne, folliculitis, or other skin infections.
• A dermatologist can provide a tailored treatment plan to reduce pimples and prevent scarring.
• If you notice worsening, pain, swelling, or signs of infection, seek medical advice promptly.

🏥 Self-Care Tips Until Consultation

• Keep the affected areas clean and avoid harsh scrubbing.
• Use gentle, non-comedogenic skin products.
• Avoid picking or squeezing pimples to reduce risk of scarring or infection.

Seeing a dermatologist is recommended to get an accurate diagnosis and appropriate treatment for your scalp and back pimples. If you want, I can explain possible causes or treatment options in more detail.To narrow down potential causes, we will need some more information.Since you've had pimples on your back and scalp for over a year, it's best to get a doctor's opinion. Could you please share your age and gender?