I'm sorry you aren't able to get dandelion tea in your country. You might be able to have it sent to you from Alvita Herbal Teas, a TWIN LAB Division, located in American Fork, UT 84003, USA. (Sorry I don't know the website) or you might try Dandelion Leaf Tea Bags from http://www.celebrationherbals.com
My experience is that the liver needs some help, so I've also tried drinking 2 tablespoons of apple cider vinegar, in warm water 3 times per day. Both the tea and the vinegar seemed to help my pinguecula irritation, and the diminishing cholesterol bumps were not something I was trying to get rid of. They just happened to slowly go away as my liver became more healthy. I wish you good luck!