rosacea
"I have tried low dose doxycycline and Periostat to treat ocular rosacea but both cause me to have a severe headache which does not go away. Only Oracea, unfortunately, with time-release doxycycline, keeps the dosage constant enough to avoid headaches. However, I no longer have pain and a feeling of "grittiness" in my eyes.

Insurance covers some of cost (generic)"