<s>[INST] My name is Bobby Joe Billy, and I m the best deer hunter and skinner in all of Loganville. Last night my head fely like it got hit by a two by four, and my stomach wouldn t hold down my food. When i got up, I had to sit back down cause the world kept on spinning, and I got this red spot on my leg that won t go away, and these theses tic bites are freaking annoying! [/INST] Hello, Blood blisters are collection of blood underneath the skin due to rupture of small blood vessels. They occur due to friction, tight clothing, heavy rubbing, pinching, sometimes due to infection. Usually blood blisters go on their own, no remedy is needed. But if the blister is large or bursts there is a chance of it getting infected, then you have to have antibiotics. Clod compression on blood blister is a good mode of relieving pain and reduce size of blood blister at acute stage. Hope this helps. Thank you. </s>