My daughter is 16 yrs old. She has swelling in eyes at times they are red also. Dischage also comes out like very thin thread. They are long. I showed to eye dr. They did needle pricking and said her tear ducts are open so she may have synus issue so consult ent, we did that also. The dr. Gave 1 weak treatment but even after that her eyes are swalloen and thread like strands are coming out. What may b the cause or what should we do?