Swollen and itchy feet can be caused by tinea pedis, mosquito bites and frostbite.
1. Tinea pedis: a skin disease caused by fungal infection. If the feet are infected by fungi, red spots, erosion with itching will appear, and when combined with bacterial infection, it may also cause swelling of the feet.
2. Mosquito bites: If your feet are bitten by mosquitoes, the venom of mosquitoes will cause an allergic reaction, and the massive release of histamine and other immune factors will cause your feet to swell and itch.
3. Frostbite: When the feet are exposed to the cold environment for a long time and then rewarmed, it can lead to rapid expansion of small blood vessels under the skin, blood leakage to the nearby tissues, which will trigger frostbite, feet become swollen and itchy.
If the feet are swollen and itchy, it is recommended to go to a regular hospital in a timely manner, after a clear diagnosis, under the guidance of the doctor regular treatment.