I Have Been Doing Boxing For Around 1 And Half

I have been doing boxing for around 1 and half months now from not doing sport for around 3 months. About 3 weeks into boxing after doing skipping and going for runs my knees seem to have something wrong with them? I can constantly feel bubbles to the right of my knee and my actually knee and have to click them continuously through the door otherwise it causes a bit of pain I have bought the knee supports and they seemed to work abit but do you have any other treatments? Thank you