good morning, im dr satya,
welcome to health care magic.
Good to know that you are keeping good health, and energetic too.
The round spot in question on your foer arm and penis is very much suggestive of a fixed drug eruption
and does not cause you much problems so long as you dont consume the medicine that caused it. Most often the reason is due to use of pain killers and mild antibiotics.
Do try to identify the drugs you consumed recently and let us know.
in the meantime you may visit your family doctor and apprise him of your problem.
Thank you, take care,
do feel comfortable to contact us.