on the face is probably an irritant /allergic reaction
to any thing that you must have applied on face. kindly check if you have applied any new cream, makeup, or anything on your face just few days before the rash.
i would suggest using anything on the face for the time being. wash wit plain water, apply moisturizer like cetaphil
, mild potency steroid
cream twice a day for 4-5 days. this should take care. also try to find out the causative agent and stay away from it in the future.
i hope this answered your question. feel free to contact me for further queries.