Please do NOT start a new thread on a medical problem for a pig you've already posted about. It makes it far too difficult for us to follow what's going on with a pig.
If you don't have the money for coconut oil, which is less than $10, you don't have enough money to have guinea pigs. You're just as responsible for their medical care as you are for their food and cage, and it's not fair to them to have them as a pet and let them suffer because you can't afford to have them treated. If you can't save/borrow/earn enough money to care for your pets, you should think about rehoming them.
This thread is closed. Use your other thread.