Hello Doctor, I Feel Like Something Pricking Inside My Right

hello doctor, I feel like something pricking inside my right eye. and my eye pains when I touch my eye lashes and also when i close my eyes. Due to this my eye is watering,but only the right eye. At this time this eye turns tonbe red. This has been started since 3 to 4 months.When firstly consulted the dr said that its due to infection and the dust particle is pricking me..when it continued I consulted another dr who said that there is a scare on my eye lid.and this dr gave my eye drops named Milflox which has to be used twice a day and another eye drop named on tears and an ointment to be used at night named lacrigel.