Since last week these red spots have been appearing and spreading on my penis head. I think it is balantis fungal so I’ve been using cloitrimale cream but so far it hasn’t been any effects. I doubt it’s an std as I haven’t had sex in a month and the symptoms just started last week. Also I don’t know if this is coIncidence but the dots started appearing as soon as I had finished an amoxicillin treatment for strep throat i had two weeks ago.
Heres an image to go by:
Yeah, looks like balanitis to me, and antibiotics can cause it. If it is balanitis, then these links may help:
https://patient.info/health/balanitis-leaflet
https://patient.info/doctor/balanitis-pro  
(written for doctors)
Washing (with water, no soap) daily, and taking a leak and washing after masturbation or sex will probably help, and you could also try Canesten cream or Daktarin cream. Loose fitting cotton underwear may help, and some sites recommend washing underwear with non-biological washing powder or liquid.
Personally, I wouldn't see a doctor unless the symptoms get worse or don't go away in a week or two, but if you do see a doctor, please let us know what they say.