7 month old keeps getting a blotchy redness around her eyes and tend to get very watery switched from right eye left comes goes What could it possibly be?

It's important to consult a pediatrician or pediatric eye doctor (ophthalmologist) to get an accurate diagnosis and proper treatment for your 7-month-old's eye issues. Here are a few possible causes for the symptoms you described:

- Allergic Conjunctivitis (Allergic Pink Eye): This is a common condition caused by an allergic reaction to substances like dust, pollen, or pet dander. Symptoms include redness, swelling, itching, and watery eyes.

- Viral Conjunctivitis (Pink Eye): This is a contagious eye infection caused by viruses. It can cause redness, swelling, itching, and watery eyes, along with other symptoms like a scratchy sensation, light sensitivity, and discharge from the eyes.

- Sty (Hordeolum): This is a small, red, and painful bump on the eyelid caused by a bacterial infection of the oil gland. It can cause swelling, redness, and watery eyes.

- Nasolacrimal Duct Obstruction: This is a condition where the tear duct is blocked, preventing tears from draining properly from the eyes. This can cause excessive tearing and redness, especially in one eye.

Given the shifting nature of the redness between eyes, it's important to get a thorough evaluation from a healthcare professional to determine the exact cause and receive appropriate treatment. The doctor may recommend specific eye drops or other treatments based on the underlying condition.