Hi, I recently shave my genital area (about 2 months ago), a week or so after I notice a small lump under the skin on my penis shaft...... Regretfully, I have tried to squeeze this, and it has becom larger and slightly tender...... It is not attached to the penis, and can be move around under the skin, therefore, I presume that it is a sebacious cyst....... As it is now larger, has it become infected? shall I just leave it alon for a while or do I need to see a doctor?