A red spot with a white center is a pustule. It is a sign of infection in the skin that contains pus, which is a mixture of infected fluid and dead white blood cells.
Often, a pustule is a form of acne, a common skin condition characterized by chronic or recurrent development of pustules, pimples, papules, or nodules on the skin.
Pustules can appear anywhere on the body but frequently develop on the face, chest, upper back, and shoulders.
Severe pustules may be accompanied by other signs and symptoms surrounding the lump, such as:
- Skin redness
- Tenderness
- Soreness
- Pain
- Swelling
- Warmth
- Itching
- Fever
What Causes a Red Spot with a White Center?
A red spot with a white center (pustule) may be caused by:
- Acne which may be caused by:
- Hormones
- Inflammation
- Stress
- Genetics
- Infections, such as:
- Infected hair follicles (folliculitis furuncles, carbuncles)
- Impetigo
- Chickenpox or smallpox
- Fungal infections such as tinea or thrush
- Parasitic infections such as scabies
- Drug eruptions
- An adverse reaction to a drug
- Rosacea
- Psoriasis
- A chronic autoimmune skin condition that causes skin to be red, thick, scaly, and flaky
How Is a Red Spot with a White Center Diagnosed?
A red spot with a white center (pustule) is diagnosed by a dermatologist with a skin examination. It is important to get a diagnosis from a dermatologist because many different conditions can cause pustules or raised red bumps that resemble pustules, such as:
- Acne
- Rosacea
- Perioral dermatitis
- Folliculitis
- Ingrown hairs
- Hidradenitis suppurativa (also called acne inversa)
- Keratosis pilaris
- Sebaceous hyperplasia
- Basal cell carcinoma, a type of skin cancer
What Is the Treatment for a Red Spot with a White Center?
Treatment for a red spot with a white center (pustule) depends on the cause.
Home treatments to prevent or get rid of a red spot with a white center caused by acne include:
- Wash twice daily and after sweating and rinse with lukewarm water
- Use gentle, non-abrasive cleanser and apply with fingertips
- Use gentle products on the skin
- Don’t use too many products at once, because this may worsen acne
- Shampoo oily hair daily
- Don’t pick, squeeze, or pop pimples
- Don’t touch your face because bacteria on your fingers can get into pores and cause acne
- Avoid the sun and tanning beds
- Regularly wash all items that touch acne-prone skin, such as pillowcases and hats
- Medications to get rid of acne include:
- Topical (on the skin) medications
- Birth control pills or patches approved to treat acne
- Other treatments for more severe cases of acne include:
- Laser or light therapy
- Corticosteroid injections
Treatment for infections that cause pustules depends on the specific type of infection and may include:
- Antibiotics
- Antiviral medications
- Anti-parasitic medications
Treatment for a red spot with a white center caused by drug eruptions includes:
- Stopping the medication that is causing the reaction
- Never stop taking a prescribed medication without first talking to your doctor
- Antihistamines
- Topical steroids
- Moisturizing lotions
There is no cure for rosacea. Treatment for a red spot with a white center caused by rosacea involves medications and lifestyle changes to control symptoms and prevent flare-ups.
- Lifestyle changes
- Avoid triggers
- Use mild, unscented face cleansers
- Avoid using irritating products on the skin
- Wear sunscreen daily
- Treatments used to treat acne-like breakouts of rosacea include:
- Azelaic acid topical
- Metronidazole gel or cream
- Sodium sulfacetamide and sulfur are ingredients found in over-the-counter (OTC) treatments such as cleansers, and topical prescription medications
- Topical retinoids, a form of vitamin A
- Oral antibiotics
- Isotretinoin
- Laser or light therapy
There is no cure for psoriasis, but treatments can relieve the symptoms. Treatment for a red spot with a white center caused by psoriasis includes:
- Topical treatments, such as creams and ointments
- Phototherapy (light therapy)
- Systemic treatments
- Biologics and biosimilars
- Disease-modifying antirheumatic drugs (DMARDs)
- Traditional oral systemics
- Nonsteroidal anti-inflammatory drugs (NSAIDs), including aspirin and ibuprofen (Advil, Motrin)
From
Acne Care Resources
https://www.aad.org/public/diseases/
https://www.osmosis.org/answers/pustule
https://www.uptodate.com/contents/treatment-of-acne-vulgaris?search=acne&source=search_result&selectedTitle=1~150&usage_type=default&display_rank=1
https://www.uptodate.com/contents/pathogenesis-clinical-manifestations-and-diagnosis-of-acne-vulgaris?search=acne&source=search_result&selectedTitle=2~150&usage_type=default&display_rank=2
https://www.aocd.org/page/DrugEruptions
https://www.psoriasis.org/