Suggest Treatment For Itching Hands And Legs

hi, i have been itchy for the past 2 days. the first night iwas so itchy i couldnt get a proper sleep the second night i wasnt as itchy when i went to sleep but woke up early with an itch. all over my arms and legs and face! please help. i've tried putting lotion on but it only makes the itch go away temporily. ive itch myself so much that i have red rashes and a few bumps. what can i do?!