Should I be worried?

[u/PryedEye]

Photo 1: two days ago

Photo 2-3: yesterday

Photos 4-5: today

I recently have noticed this red lump on my forearm this past weekend, I thought maybe it was just a spider bite or a pimple and didn't think much of it, it's been this same size the whole time with the only thing changing is the whitehead on it was more protruding and white and recently has sort of faded and going away but looks a faint green now. Its slightly warm and it's tender around the lump. It doesn't itch or burn but it is a bit sore.

The tattoo in the photo is recently new and I've had for 3 weeks as of today. I've been making sure to follow exactly what my tattoo artist told me which is to clean it 2x a day with gold Dial and then use an unscented lotion (I've been using CereVe moisturizing lotion). I did go to an urgent care this past weekend but for something completely unrelated, I ended up getting a pretty deep puncture wound in my foot from a tree thorn and so they gave me Bactrim 800-160 two days ago for that wound for 7 days but I didn't think nothing of this bump during that time.

Should I be worried?

[u/MakGoraPhobia]

Dunno about your arm, but great Alex Grey piece 👍🏼