Quarter sized rash on right shoulder asymmetrical. Raised up a tiny bit and red in color been present for two days any hints on cure? It itches

Rash. Many possibilities including nummular eczema, contact dermatitis, herald patch of pitiriasis rosea, tinea corporis, insect bite, see your doctor or dermatologist for evaluation and treatment.
Rash. Rashes are best diagnosed by looking at them. So just as a guess, your itchy, red patch could be a superficial fungal infection. Try tinactin (tolnaftate) or Lamisil or Clotrimazole cream, all are over the counter anti-fungals. If it doesn't resolve see your doctor.