Thanks for writing in.
This kind of bump can be a swollen lymph node,a sebaceous cyst or a boil. Lymphadenopathy (swollen lymph nodes) is usually caused by a viral or bacterial infection along with other numerous causes.Treatment is usually cold compresses,over the counter anti-inflammatory analgesics(pain killers) like acetaminophen or ibuprofen,antibiotics if cause of infection is suspected to be a bacteria and surgical drainage if there is any abscess formation.
Sebaceous cyst is a closed sac that fills with a fatty white material called sebum produced by sebaceous glands of the epidermis.It is usually painless but can become painful if infected.Then antibiotics are needed.
Boils are caused by infection of the hair follicle be staph aureus.Treatment includes antibiotics.
It does not sound like herpes because herpes presents with painful blisters that scab over.However anything can be confirmed after investigations like western blot or herpes select.
These bumps should go after antibiotics which you are already taking.Just keep that area clean and wear cotton undergarments.Neosporin application is particularly helpful.
I hope that helps. Please do keep me posted on how you are doing or if you have any additional doubts.Warm regards.