Ask an Eye Doctor and Get an Answer ASAP
Painful swelling of the lid of short duration of 2 days is more indicative of a hordeolum of the lid ( external type is commonly called as stye). This requires a course of oral antibiotics, oral analgesics like paracetamol 500mg twicw a day, hot fomentation to give relief from pain. With this treatment it subsides within 3-4 days.
If there is no significant swelling of the lid margin and only the inner end looks swollen then the itching could be due to allergic conjunctivitis. This can be treated with a short course of steroid eye drops and mast cell stabilizer eye drops.
A visit to your ophthalmologist will confirm this. In the meanwhile please continue with hot compresses and oral analgesics.
I hope your doubts are clarified.
Please feel free to contact me for any clarifications. Clicking "ACCEPT" button pays me for my work. BONUS and POSITIVE FEED BACK are very much appreciated.
These answers are for information purpose only and cannot be substituted for a check-up and visit to an ophthalmologist.