Hello Thanks for query .Based on your statement I would state that you have Sebaceous cysts over scrotal sac, The scrotal skin is rich in sebaceous glands and hence prone to get more sebaceous cyst due to accumulation of sebum beneath the skin. Normally they fade away without treatment however they need to be treated if increase in size or get infected. Take antibiotics like Augmentin along with anti inflammatory drug like Diclofenac twice daily . If does not subside with above treatment you will need to consult qualified General Surgeon for clinical evaluation and further treatment. If needed which is bigger may need to get excised in Toto (Completely along with the sac) Dr.Patil.