The rashes on your body seems to be Urticaria.
An allergic condition with inflammation of the local area.
Check when you are getting the rashes.. Is it after exposure to sun, pollen, dust etc. Or is it after eating some kind of food.
If you can find the cause of the rashes, it would be easier for a doctor to help you.
Avoid deep fried foods
Avoid any hair colouring, if you are using one.
Take Reckeweg's liquid 23, 10 drops 4 times a day
Consult a homoeopath for further treatment