What should I apply for burning left eye?

It might be a good idea to seek medical attention since you're experiencing low fever, sore throat, etc.. Given your history of migraines, these symptoms could have various causes. If your symptoms are severe, worsening, or causing significant distress, it's advisable to seek medical help promptly.

Yes, you can give blood if you take­ ashwagandha every day and had Lasik surgery 3 ye­ars ago. The ashwagandha herb is safe and will not impact your blood donation. The­ Lasik eye operation you had some­ time ago also does not stop you from giving blood. Just make sure­ you feel good on the day you plan to donate­ blood. 

Your condition could be caused by allergies or medications.. Consult an ophthalmologist to determine the root cause. Apply warm compresses and avoid certain environments. Artificial tears or gels can also alleviate dryness . But don't go for self treatment, contact a specialized earliest

The retina is a thin film of tissue making the inner surface of your eye that transmits the images outside to your brain. Problems with the retina can lead to serious vision issues. Signs of the problem with the retina you might get are blurred vision, flashes of light that come out of nowhere, and the perception of something that is not there in your field of vision. Causes can range from aging to serious conditions like diabetes. In the case of treatment, the restoration of vision is usually done by a surgical operation on the damaged retina. 

Blue filter glasses are designed to protect your eyes from harmful blue light emitted by screens. The number of blue filters in the glasses usually depends on the brand and type you choose. If you're concerned about the effectiveness of the blue filter, it's best to opt for a reputable brand that specifically mentions blue light protection. In fact, excessive exposure to blue light can lead to digital eye strain and disrupt your sleep cycle. To reduce the impact of blue light, you can also follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. If you're experiencing eye discomfort, it's advisable to consult an eye specialist for a comprehensive eye exam.