i have been using castor oil on my lashes nightly for the past two months for medical issues, but recenly i realized the oil has become watery (runny), i thought it might be because of the heat since i live in a hot country. What can i do to get the viscosity back? should i place it in the fridge or would that affect its properties? also what does it mean that its watery, can it mean that its gone bad some how? (which i doubt)