I did some small calculations to see the impact of Electrotherapy to healing tools.
The buff comes with a 20% of max HP damage taken every 10 seconds which means the effect can be countered with a restoration 5 (L).
Electrotherapy turns a t0 mod hedoc into a t5 perfected hedoc.
Healing you receive also includes heals from healers. Decay is not changed, making faps much better and more eco and will get you a much bigger bang for the buck in the case of resto chips.
Note: small error int he table above, perf hedoc max heal is 200, not 250. that will make it to 300 when Electrotherapy buff is enabled.