I also have this problem in my eyes. I sometimes have a sudden congestion. I went to the hospital several times without giving an explanation. The doctor also prescribed many kinds of eye drops, among which I found tobramycin dexamethasone eye drops to be the most effective. Basically, the symptoms improved and stopped dripping the next day. Because it is a hormone, the doctor also said that I can't use it for a long time, but I have been using it intermittently for two years, and no adverse reactions have been found for the time being. Anyway, I take medicine for two days at most, or it may be because I don't take medicine regularly and continuously, so my eyes are not completely. Ok, cover your face ~ but a doctor said it was an allergy before, and this should not be cured. Whenever I encounter an allergen, it will recur. It's really worrying ~