Why does aloe vera gel sting when applied to the face?

Under normal circumstances, a stinging sensation when applying aloe vera gel to the face may be related to factors such as dry skin, skin damage, thin stratum corneum, allergy, or bacterial infection. It is recommended that patients follow medical advice for symptomatic treatment. Specific analyses are as follows:

1. Dry Skin

During autumn and winter, the climate tends to be dry, which may lead to loss of skin moisture, resulting in dryness, peeling, and minor cracking. Applying aloe vera gel under these conditions may cause mild irritation and a stinging sensation, which is considered normal and generally does not require treatment.

2. Skin Damage

If the skin has been accidentally damaged during facial cleansing, the aloe vera gel may irritate the wound, causing a stinging sensation. Patients can use povidone-iodine solution under medical guidance for disinfection, or apply erythromycin ointment or mupirocin ointment as directed by a physician to prevent or treat infection.

3. Thin Stratum Corneum

If a patient naturally has a thin stratum corneum (outermost skin layer), applying aloe vera gel may irritate the skin and cause the aforementioned symptoms. It is advisable to avoid over-cleansing the skin in daily routines to prevent further damage to the stratum corneum, which is essential for maintaining healthy skin.

4. Allergy

If a patient is allergic to ingredients in aloe vera gel, application may result in a stinging sensation, along with symptoms such as skin pain, rashes, and red patches. In such cases, treatment under medical supervision may include calamine lotion, cetirizine hydrochloride tablets, or loratadine tablets.

5. Bacterial Infection

Poor hygiene during facial washing may lead to bacterial infection on the face, causing discomfort such as stinging and swelling. Under medical guidance, patients may use medications such as chlortetracycline hydrochloride ointment, fusidic acid cream, or amoxicillin capsules to alleviate symptoms.

In addition, stinging from aloe vera gel may also be due to high concentrations of chemical ingredients or the presence of alcohol. If discomfort persists, individuals are advised to seek timely medical evaluation to avoid delayed diagnosis and treatment.