Hello Makayla I really appreciate your concern for your boyfriend and I will try to help you in best possible way Looking at your description this could be epididymorchitis or torsion of testis I would like further information to help him better His age and relevant medical history like diabetes or other metabolic disease any history of trauma or injury Is he running fever I would advise for an colour doppler study of the testis and if you have done it than please upload me the reports You can give him ibuprofen and pain and advise him to wear scrotal support. Hope this answers your question Please feel free to ask for more clarification Best wishes