I am just a keen beginner but am experiencing one off-putting problem. Immediately after even a very short practice, I develop raised red spots on my knees (the spots correspond to the small bumps on my yoga mat). They then start to sting and last for several days.
Other students with exactly the same yoga mat do not experience this.
I am slightly overweight (about 9 kilos/20 lbs). (But other students are more overweight).
My instructor is baffled.
I don’t feel any pain or stinging while I am actually doing the poses, but it begins immediately afterwards. It happens so quickly. Today at home I just practised one full round of Sun Salutation … and the spots appeared.
I realise I need to remember to put some kind of padding under my knees to prevent this …but also wonder why is this happening to me and not others using identical mats to do identical yoga poses???