if you look up the dictionary the word that comes after rash is rasher.
rash
Centrifugal Rash: Outward rash, in means a rash first appears on the trunk then spreads to the extremities. (Example: Rubella Virus also known as German Measles)VS.Centripetal Rash: Inward rash, rash first appears in the extremities and the spreads towards the trunk. (Example: Rocky Mountain spotted fever)
rash
Rash.
Well let me tell you this no you can not but you can if the rash or the first few bumps you get wich are the producer of all the other ones you may get. But if you have had the rash and it makes more the rashes those are only contrast to the owner of the first rash.
lupus
rash
Heat rash maybe, eczema maybe also it may be an allergy to something like washing powder
if it comes out to quickly you will get a red rash and itchy skin from the gas bobbles.
Rash lash
Imprudent
itchy sensation that forms a bump under the skin and then comes out like a bug bite