This is less of an anxiety question, but this site is helpful for health stuff so... About a week ago i grazed my knee and some other body parts. The scab on my knee fell of in thd bath after an orange liquid began seeping out one side of it. I pulled the scab off and now theres just this orange looking 'dent' with white looking blobs on my knee. The area around the scab is red/purple but not all of my knee. Should i be worried for infection?