Suggest Remedy For An Infection On The Penis

the last time I had sex was about three months ago last week I noticed about six bumps almost n a circle on my shaft below the head on the side closest to the scrodum they are painless and itchless not like pimples just small bumps today I noticed another bump this time on the top near the base its red and larger it doesn't hurt but it night have popped a little bit and a little clear liquid my ex said she was tested after me and came back negative but who knows I'm scared!