Natural redheads need more novocaine!
Natural redheads require increased doses of anesthesia, due to some connection with the mutated melanocortin-1 receptor. I’m a natural redhead myself, and developed a fear of dentists because I’d always feel what they were doing!
Eventually, I had an issue that couldn’t be ignored and had to find a new dentist. At my first visit, he took one look at me, and said: “You’re a real redhead, huh?” “Yup.” “(Hygienist), get me 4x the novocaine!” I knew I’d found my man, and he’s been treating me ever since… also shed my fears since dental work is much less unpleasant when you’re actually numb before they start.