Lip filler lump 6 months later - how can this be treated?

6 months ago I got 1ml lip filler. Immediately I noticed a couple lumps. Now, I visited another dermatologist for this problem and as we were talking I mentioned that when I got covid earlier this month, my filler got swollen but after covid passed my hard lump felt softer. He suggested I could take Renitec (enalapril) for a month as it has similar enzymatic action with covid and maybe then my filler will breakdown. Does this make sense? He said he'll use 200iu hyal if this doesnt work.