Can someone help identify what disease a couple of my fish have as I'm getting lots of conflicting things when googling!
Background: Tank is about 3 months old, 8 neon tetras and they broke out in Ich a couple of days after I got them 3 weeks ago. Tank is fully cycled and aquascaped. Because of the current Coronavirus situation, I had to wait a couple of days before the meds (Waterlife White Spot & Fungus) arrived but while I was waiting for this, I noticed a couple of the tetras developed a larger white 'spot' on their upper lip. Researched and found it could be fungal so used the waterlife and thought it may kill two birds with one stone. Ich disappeared within 48h but continued the treatment for the full course. Now, there are only two of the tetras with this white spot on their lip. (See photos, sorry about quality, they move too quickly hah)
I'm sure it used to look fuzzy however, it now looks more like a spot, hard and formed but I'm doubting myself what it used to look like
Colour is good, all tank levels are good and they are eating/behaving normally.
What should I treat with? I have no quarantine tank at present unfortunately so meds must be plant/FB safe. No other fish currently in there - will be eventually but waiting to make sure these lot are healthy!
TIA
Background: Tank is about 3 months old, 8 neon tetras and they broke out in Ich a couple of days after I got them 3 weeks ago. Tank is fully cycled and aquascaped. Because of the current Coronavirus situation, I had to wait a couple of days before the meds (Waterlife White Spot & Fungus) arrived but while I was waiting for this, I noticed a couple of the tetras developed a larger white 'spot' on their upper lip. Researched and found it could be fungal so used the waterlife and thought it may kill two birds with one stone. Ich disappeared within 48h but continued the treatment for the full course. Now, there are only two of the tetras with this white spot on their lip. (See photos, sorry about quality, they move too quickly hah)
I'm sure it used to look fuzzy however, it now looks more like a spot, hard and formed but I'm doubting myself what it used to look like

What should I treat with? I have no quarantine tank at present unfortunately so meds must be plant/FB safe. No other fish currently in there - will be eventually but waiting to make sure these lot are healthy!
TIA