2.5 weeks ago my jawline started feeling itchy. Later that day, my forearms and base of neck felt issue and a rash of small red bumps formed after I scratched. The redness went away, but colorless small bumps have remained on my forearms and upper arms (inner biceps). Earlier this week, I bought hydrocortisone and that relieved the itch in my jawline (no rash ever present on my face). The hydrocortisone did not make the colorless bumps on my arms disappear. These bumps are barely visible, more visible under certain light. I have not started using anything new in regards to soap or detergent. Any ideas? How long before I make a doctors appointment?