After soaking his feet at night, he lay on the sofa and watched TV, and found that there were small

Have you eaten anything allergic or fish and shrimp food, or you have drunk, soaked your feet and heated up the blood circulation, it is easy to do this, generally do not itch and don't care about him, you should be gone when you wake up, if there is still one more day, see if you can see it, oral chlorpheniramine try, do not take a hot bath, afraid of burning! There is also a possibility that there are biting bugs on the sofa, try cleaning, there should be no other problems!

Caused by heavy dampness in the body.