They are probably due to a rise in a nervous/immune system transmitter, histamine which can cause localized increases in blood flows within the skin, Grace. The skin is also rich in serotonin, a neurotransmitter implicated in
Have you changed your soaps, lotions and/or detergents lately? Perhaps this is contact dermatitis? Have you stayed overnight in any hotels lately? There've been reports of bed bug infestations. Have you been outdoors? Pe
Sorry but I'm having a difficult picturing a red bump. It might be an ingrown hair or it might be a sexually transmitted infection, especially if you're itchy. Since you're worried, it's best to go see your family doctor.
Just got diagnosed with Lupus last week. Is there any way to make yourself go into remission? Sounds like a malar butterfly rash. Even if in remission you should always protect your self from the sun...