Hi, I had a wisdom tooth extraction on the right side together with a cyst removal roughly 3 weeks ago. The pain got better each day and by now there is almost no discomfort. However, roughly a week ago, I started having a weird taste in mouth. I thought it was blood initially blood but there was nothing in my saliva after spitting out. Yesterday night however, I noticed it had a very very pale green tinge. This morning, my first spit was rather green in colour. Please advice if this is something to be concerned about. Thank you so much.