What causes white streaks on both sides of the nasal alae?

Generally, the presence of white stripe-like substances on both sides of the alar region may be caused by inadequate skin cleansing, sebaceous gland secretion, mite infestation, seborrheic dermatitis, or folliculitis. If discomfort occurs, timely medical consultation is recommended for targeted treatment under a physician's guidance. Detailed explanations are as follows:

1. Inadequate Skin Cleansing

If skin cleansing is neglected for a prolonged period, insufficient cleansing may lead to clogged pores, where a mixture of oil and dirt forms white stripe-like substances. This may also be accompanied by enlarged pores and dull skin complexion. Daily attention to proper skin cleansing is necessary, while avoiding excessive washing that may damage the skin.

2. Sebaceous Gland Secretion

Excessive sebaceous gland secretion, especially in the T-zone area such as the alar region, can easily lead to overproduction of oil. Accumulation of excess oil in the hair follicles may result in white stripe-like substances. This may also be accompanied by oily skin and clogged pores. Oil-controlling products can be used in daily life to regulate sebum secretion.

3. Mite Infestation

Mites, such as follicle mites, may inhabit both sides of the alar region, feeding on skin oils and keratinocytes and producing excretions. These excretions mix with skin oils, potentially forming white stripe-like substances. Symptoms may include skin redness, swelling, and itching. Anti-mite medications such as luliconazole cream, ciclopirox cream, and liranaftate cream can be used under a physician's guidance.

4. Seborrheic Dermatitis

Seborrheic dermatitis is a common skin condition associated with multiple factors, including heredity, diet, and lifestyle habits. Under inflammatory stimulation, excessive sebum secretion and itching may easily lead to the formation of white stripe-like substances. Symptoms may also include erythema and scaling. Medications such as tacrolimus ointment, ketoconazole cream, and pimecrolimus cream can be used under medical supervision.

5. Folliculitis

Folliculitis is an inflammation of the hair follicles caused by bacterial infection, often related to poor hygiene, excessive oil secretion, or decreased immunity. When hair follicles are infected by bacteria, pustules may form, with pus that can lead to white stripe-like substances. Symptoms may include redness, swelling, and pain around the hair follicles. Topical medications such as mupirocin ointment, fusidic acid cream, and erythromycin ointment can be applied as directed by a physician.

In daily life, maintaining a light diet, consuming more fresh vegetables and fruits, and reducing intake of spicy and oily foods are recommended. Additionally, ensuring adequate sleep and maintaining a positive mindset can help alleviate skin problems.