Hi Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern.
Red spots on head of penis can be due to many reasons
Genital herpes, is most common. Classic genital herpes lesions resemble small
pimples or blisters that eventually crust over and finally scab like a small cut. These lesions often appear within the first two weeks the virus is transmitted and can take between two to four weeks to heal.
Your symptoms could also indicate a ringworm infection, which is a
fungal infection. Ringworm causes either a red, circular
skin rash inflamed around the edges. Genital warts caused by the human papiloma virus, could also be the cause of the red spots.
Syphilis can also cause lesions on the genitals
All the conditions above can be transmitted through sexual contact, so until you figure out what you have, you should to be extra about protecting your partner from direct contact with the lesions or from genital to genital contact.
The best thing to do would be to visit a physician, and he would make a specific diagnosis & treat accordingly.
Hope your query is solved
Get well soon