@jake_frezell
@Figensport
Most likely is going downhill, the airblower would impart a force, but it would not be significant. Most likely the airblower could not even overcome the frictional force of the wheels to start the skateboard moving let alone push that heavy of a system to such a speed.
@Amazingkassie
Look similar to Urticaria. Certirzine if does not work Diphenhydramine but is sedating. May be allergic to skin care products are using. Should see dermatologist if persist.