I have a viral dendrtitic ulcer on my cornea. i have blurry vision. i have been using a topical antivral gel for 4 days - how soon should this heal?

Corneal specialist: You need, preferably, to be under care of ophthalmologist who is specialized in cornea. If your corneal damage is under treated it can lead to corneal implant. You may need to take antiviral medicine by mouth. See ophthalmologist as soon as possible. Treatment can take from a few weeks to a few months.

Within 7-14 days: Generally in dendritic keratitis that is treated early, the disease course lasts for about 7-10 days. More complicated forms may take several months to become stabilized.

Vision takes longer: After the dendrite clears, swelling is usually present that may keep your vision blurry. This phase can last more than a week after you finish your antiviral.

Several days: It depends on how big the ulcer was originally. If it is improving on treatment, usually dendritic ulcers will be heal up within 1-2 weeks. Careful assessment of progress by your eye doctor is essential.

Several more days: Sounds like hsv keratitis. You need to follow up with your ophthalmologist in a few days to make sure you are healed. This can be a chronic problem so get checked please...