The flash of the camera

The subject's eyes being too close to the camera

The subject's eyes being too far from the camera

The subject's eyes being too bright

Using a red eye reduction tool in a photo editing software

Applying a color correction filter to the eyes

Using a physical red eye reducer

Cropping the photo to remove the eyes

Pimples

Blackheads

Whiteheads

Wrinkles

Using a blemish removal tool in a photo editing software

Applying a skin smoothing filter to the photo

Using a physical blemish remover

Using makeup to cover up the blemishes

Use a flash diffuser

Have the subject look away from the camera

Use a lower flash power setting

All of the above

Keep your skin clean and moisturized

Use a primer before applying makeup

Use a foundation that matches your skin tone

All of the above

Red eye removal tool

Blemish removal tool

Color correction tool

Clone stamp tool

Healing brush tool

Clone stamp tool

Spot healing brush tool

Red eye removal tool

Select the red eye reduction tool and click on the red eyes

Select the red eye reduction tool and drag it across the red eyes

Select the red eye reduction tool and adjust the settings

All of the above

Select the blemish removal tool and click on the blemishes

Select the blemish removal tool and drag it across the blemishes

Select the blemish removal tool and adjust the settings

All of the above

Use a flash diffuser and keep your skin clean and moisturized

Use a lower flash power setting and use a primer before applying makeup

Have the subject look away from the camera and use a foundation that matches your skin tone

All of the above

Hormonal changes

Poor diet

Stress

Genetics

Itching

Burning

Tearing

Blurred vision

Artificial tears

Antihistamines

Decongestants

Antibiotics

Benzoyl peroxide

Salicylic acid

Retinoids

Antibiotics